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General => IHADAV8 Playground => Topic started by: gusszgs on December 21 2018, 05:26:35 PM

Title: New T codes 32 and 44
Post by: gusszgs on December 21 2018, 05:26:35 PM
Ok guys, getting a tad frustrated with this ‘87 TR I picked up in early Nov.
I’m getting codes on the SM I picked up, so I can see through the window a bit clearer.
Car runs pretty darn good except at idle.
Here’s what I’ve done so far.
Denso 1001 02 sensor
Cleaned IAC....counts are around 20 hot idle
Fresh plugs, NGK UR5’s, good tested wires, coil pack ect..
FP regulator was toast so I pick up a 237 from Expander (thx Steve)
I have replaced ALL vacuum lines
TPS is st .42 @ idle
Fresh oil and filter.
Today I pulled the EGR and checked, it’s good and no blockage  and replaced gasket

The car is an original 79k Kms but sat a lot
I do have a stock TT chip burned for 28’s to install yet.
My suspicion is MAF, but I’ll be damned if it doesn’t run like a beast off idle.
Maybe injectors?
The BL’s won’t budge off 150 at idle.
At idle cold it’s rather rough, not bad but til it warms up it’s a bit rough
Oh, I did do rap test in MAF as well, no change.
Maybe I should get that TT in and move from there?
Any ideas or thoughts are appreciated
Jim
Title: Re: New T codes 32 and 44
Post by: earlbrown on December 21 2018, 08:44:18 PM
If you're trying to turn around a stock ship and physically have a TT chip, you're going about it backwards.  That's like trying to tune a carb around a found spark plug.  Only worse.

I wouldn't do a thing until that TT chip is installed.    I'd also get that POS stock MAF out of that car yesterday.
Title: Re: New T codes 32 and 44
Post by: Steve Wood on December 21 2018, 09:13:20 PM
Put the TT chip in. What does the maf read at warmed up idle?

Title: Re: New T codes 32 and 44
Post by: Scoobum on December 22 2018, 06:09:52 AM
Jim, I'm off for 11 days. Let me know if you want me to take a run up. That TT chip will need an AFPR...but should work for testing purposes. Swap the MAF/Translator from your other car to test?
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 06:31:13 AM
Put the TT chip in. What does the maf read at warmed up idle?

Steve, the MAF reading at idle is 5-6
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 06:36:42 AM
If you're trying to turn around a stock ship and physically have a TT chip, you're going about it backwards.  That's like trying to tune a carb around a found spark plug.  Only worse.

I wouldn't do a thing until that TT chip is installed.    I'd also get that POS stock MAF out of that car yesterday.

Yes Earl, I understand but I was hoping the stock MAF was ok, as this car is fairly rare and just wanted to have it remain stock. I have my LT-1 from you and need another translator anyway, so will probably go that route.
I was just trying to dial it in best I could with basic settings. I’ll have the TT chip in soon👍
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 06:44:34 AM
Jim, I'm off for 11 days. Let me know if you want me to take a run up. That TT chip will need an AFPR...but should work for testing purposes. Swap the MAF/Translator from your other car to test?

Not going to rob Peter to pay Paul Brad, I’m not touching the Ltd lol
I will get what’s necessary for this car, rather than scoop stuff off the Ltd.
I meant to mention as well guys, the FP is 37/43 respectively line on/off. (Bosh 237 Regulator)
I left the gauge on the car overnight and FP dropped to 25psi over the course of a 12 hr period.
Thanks guys for you input 👍
Title: Re: New T codes 32 and 44
Post by: Steve Wood on December 22 2018, 08:15:50 AM
Okay...put the TT chip and start looking for the air leak both in the exhaust and the intake side. Be sure the plenum is not leaking. All signs point to a leak at this moment
Title: Re: New T codes 32 and 44
Post by: TexasT on December 22 2018, 08:52:58 AM
Stock is fun til you lift a head.
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 09:00:42 AM
Okay...put the TT chip and start looking for the air leak both in the exhaust and the intake side. Be sure the plenum is not leaking. All signs point to a leak at this moment

Thank you Steve
As stated I did all vac lines ect...
Does the MAF reading look wrong? I believe my Limited is about the reading at idle.
I also ment to mention the SES light comes on intermittently .....kinda strange as it mostly comes on at idle, then when driving the car it will go out then back on again.
I also tried the propane trick around all vac sources to see if idle changed...noth ing.
Just thought of one thing I didn’t do and that was to see if the EGR solonide is commanding vacuum at idle.

BUT as said, I will follow advice and install TT chip before moving forward.

Brad, thanks so much for offer, I’m pretty busy over the holidays and such but will be in touch if the chip and other checks don’t help me make some leeway.
Title: Re: New T codes 32 and 44
Post by: good2win22 on December 22 2018, 09:01:27 AM
Off idle runs smooth...  150 blm's.... Cold start is rough but cleans up a bit when warm... My guess is an injector is weak and staying closed until fuel pressure rises

Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 09:44:38 AM
Thanks Jason
One thing I did try this morning as I’m short on time, is running it and checking the EGR operation as it’s giving a code 32 consistently. I pulled vac line off valve and the car cleaned right up as far a smoothness at idle goes. When I re attach the vac line the car idles roughly. No difference hot or cold. The valve moves freely when vac line applied. Ports are clear as well.
Still sends code but the car car idles MUCH better without the EGR valve hooked up.
Yes I’m very suspicious of the injectors. BL 150. INT dances around 135-142
Steve, I verified the MAF at idle....5 on SM
Title: Re: New T codes 32 and 44
Post by: daveismissing on December 22 2018, 10:27:51 AM
Did you have a really good look at the ribbed intake pipe?
 If the wastegate rod is not modified I doubt the stock chip hurt it.
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 11:04:23 AM
Yes Dave, the flex hose to turbo from MAF?
That intake hose in is excellent condition

Also, for added info guys, I did a cylinder pressure check on all 6.
The numbers are all very good and range from 150-155psi
Title: Re: New T codes 32 and 44
Post by: earlbrown on December 22 2018, 11:45:31 AM
Stock is fun til you lift a head.

"I want to keep it stock" is starting to be my "10sec"  when it comes to my eyes glazing over.
Title: Re: New T codes 32 and 44
Post by: nocooler on December 22 2018, 12:20:28 PM
If it’s opening up the egr all the time the vacuum lines are routed wrong or the egr solenoid could be bad.
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 22 2018, 01:52:21 PM
If it’s opening up the egr all the time the vacuum lines are routed wrong or the egr solenoid could be bad.

Pretty hard to mix em up lol
Ok then, at cold start up should the solenoid command the EGR to open the valve? It appears this one is doing just that.
Title: Re: New T codes 32 and 44
Post by: nocooler on December 22 2018, 09:49:50 PM
I believe it’s only called at light load cruise but it’s been awhile.....
Title: Re: New T codes 32 and 44
Post by: Scoobum on December 23 2018, 06:00:59 AM
BLM's tell me it's a vacuum/exhaust leak. The EGR's leak like a whore. I'd be installing all new vacuum hose...includi ng the ones off the vacuum block. You're a trucker...you prolly know a place close by to get the injectors cleaned. 1987 to 2018...you can do the math to how old they are. ERICS CHIP SHUTS OFF THE EGR. I get underneath them when they're running and put my hand around the crossover connections to feel for leaks. Lots of them leak...while the owners tell me they don't. The ribbed MAF hose is a POS...as Dave pointed out.
Title: Re: New T codes 32 and 44
Post by: Steve Wood on December 23 2018, 09:36:09 PM
Okay...put the TT chip and start looking for the air leak both in the exhaust and the intake side. Be sure the plenum is not leaking. All signs point to a leak at this moment

Thank you Steve
As stated I did all vac lines ect...
Does the MAF reading look wrong? I believe my Limited is about the reading at idle.
I also ment to mention the SES light comes on intermittently .....kinda strange as it mostly comes on at idle, then when driving the car it will go out then back on again.
I also tried the propane trick around all vac sources to see if idle changed...noth ing.
Just thought of one thing I didn’t do and that was to see if the EGR solonide is commanding vacuum at idle.

BUT as said, I will follow advice and install TT chip before moving forward.

Brad, thanks so much for offer, I’m pretty busy over the holidays and such but will be in touch if the chip and other checks don’t help me make some leeway.

Your maf is reading correctly for idle so it is okay at that point.  But the BLMs are maxed out which indicates the computer is adding as much fuel as possible to  compensate for a perceived lean condition.  This is typically a sign of a leak.  Usually, one would suspect a cracked header or other exhaust leak before the O2 sensor.

Also, the usual cracked, holes, loose hoses, leaky  plenum or vacuum block, etc.

Sounds like you have covered the egr leak, but, if you did not, apply a vacuum to the egr and see if it holds a vacuum.  Sometimes they get a hole in the diaphragm.

The TT chip does not use the egr so you can either remove all the  plumbing, or, block the hoses so they don't do anything.

The steel vacuum lines sometimes crack and leak air so that is another check.

The blinking SES light is common.  The problem may not last long enuf to set a hard code so the light goes away.
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 24 2018, 12:55:20 AM
Thanks Steve 👍
I’ll be installing the TT chip this morning and will report back my findings.

Title: Re: New T codes 32 and 44
Post by: gusszgs on December 31 2018, 12:31:30 PM
Ok guys, my apologies for not updating sooner, but the Christmas stuff tends to get in the way somewhat.
Anyway, I did install the TT chip and ran it today. I seems to idle much better but the BL and INT numbers are still quite high 140’s
2 things here. I haven’t ran the car on the road yet (not sure if that has anything to do with the relearn) and I did not unplug the ECU power yet. I no longer have ANY codes on SM either 👍
Now, the TPS is ok at .42 but IAC numbers are rather high, (40-50 range) so I will go back and readjust accordingly. RPM’s are in the 700 range. Bit low??
Fan is coming on much sooner as to be expected with Eric’s chip, around 170* for first time.
O2’s look ok and dance around. I installed a good Denso 1001 O2 a few weeks back.
I cannot hear any audiable exhaust leaks, I know that doesn’t mean I don’t have one lol

Title: Re: New T codes 32 and 44
Post by: TexasT on December 31 2018, 12:43:08 PM
Pull the orange wire apart and reset the computer. It is confused and trying to add fuel . If it has a "clean slate" I'm sure it shall run better.
Title: Re: New T codes 32 and 44
Post by: Scoobum on December 31 2018, 02:10:56 PM
Jim...disconne ct the orange power wire to the ECM...and reconnect...an d then follow Erics instructions 8 and 9. If the BLM's are still 140 after this then I suspect a vacuum/exhaust leak.

http://www.turbotweak.com/turbotweakinstructions57.pdf (http://www.turbotweak.com/turbotweakinstructions57.pdf)
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 31 2018, 04:11:42 PM
Done guys, figured as much....brain cramp, doing 20 things at once here.
Doors apart and mirrors off, polishing and buffing lol
Awaiting arrival of new outer dew sweeps ect...
Title: Re: New T codes 32 and 44
Post by: Steve Wood on December 31 2018, 04:27:41 PM
sounds like solid progress to me!  One foot in front of the other and you will get there :)
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 31 2018, 04:41:02 PM
Thanks Steve 👍
Title: Re: New T codes 32 and 44
Post by: TexasT on December 31 2018, 06:20:57 PM
Progress Pix
(https://i.postimg.cc/CRmTZCkc/V-5F2F.jpg) (https://postimg.cc/CRmTZCkc)

(https://i.postimg.cc/gxYbktXw/V-84-E7-1.jpg) (https://postimg.cc/gxYbktXw)

(https://i.postimg.cc/zLvmTLk8/V-DACC.jpg) (https://postimg.cc/zLvmTLk8)
Title: Re: New T codes 32 and 44
Post by: gusszgs on December 31 2018, 06:58:46 PM
Thanks Rich
I’ll step into the 90’s one day🙄
Title: Re: New T codes 32 and 44
Post by: daveismissing on January 01 2019, 12:31:33 PM
Did it look like this?
Hmmmm

(https://i.imgur.com/8CJQGsy.jpg)
Title: Re: New T codes 32 and 44
Post by: gusszgs on January 02 2019, 12:35:49 AM
Yepper Dave
That’s her. Did you know the gent?
Title: Re: New T codes 32 and 44
Post by: Scoobum on January 02 2019, 04:46:55 AM
Jim...appears that's a Monte SS style exhaust...and possibly not turbo mufflers.
Title: Re: New T codes 32 and 44
Post by: gusszgs on January 02 2019, 10:53:02 AM
Yes it is. Lol.....and it’s coming off and Hooker CT is going on.
Title: Re: New T codes 32 and 44
Post by: daveismissing on January 02 2019, 05:59:58 PM
My dad was in the care facility across the street. Flat tires and the racks caught my attention. It may have had a cover on it at some point. Mid Dec '17 was the last I was there.
Title: Re: New T codes 32 and 44
Post by: gusszgs on January 02 2019, 07:31:25 PM
She definitely needed some TLC.....gettin g there
Title: Re: New T codes 32 and 44
Post by: gusszgs on February 11 2019, 03:27:13 PM
Ok, got side tracked with detailing and such but had it running again today. TT Chip installed! MAF hose is/was in good shape but yes, I’m guilty as I missed a couple of very small tares which where repaired. (Thin smear of right stuff on inner and outer surface)
Started it up this afternoon and INT is 128, BL still at 142. All other values look good.
So while prowling around under the car on jack stands looking for my source of oil leak (brand new valve covers gaskets installed) so I’ve eliminated that possibility (nice n dry up there) I discovered the exhaust IS leaking at the DS crossover. I can feel it against my hand on block side.

So, I will pull the crossover off and go from there, as it looks like I have to do the pan gasket and rear main seal anyway
Thanks to all you guys for your input. Yes, I feel like an ass!! 😂
Title: Re: New T codes 32 and 44
Post by: Scoobum on February 11 2019, 04:10:58 PM
Jim...if the crossover pipe is fukd...don't get one from Kirbans. I grabbed one from them a few years back...and it didn't come close to fitting. The studs will prolly snap. Pull the header...it ain't that hard...and install new ones. I know you don't like gaskets...but if any exhaust gases escape to the atmosphere it'll spool slower and your BLM's will be out of whack. I run both header gaskets and a turbo flange gasket. I've got 'er sealed up tight. Ya' I know. They never had gaskets...but after a gazillion heat cycles...stuff warps.
Title: Re: New T codes 32 and 44
Post by: gusszgs on February 11 2019, 04:28:28 PM
Jim...if the crossover pipe is fukd...don't get one from Kirbans. I grabbed one from them a few years back...and it didn't come close to fitting. The studs will prolly snap. Pull the header...it ain't that hard...and install new ones. I know you don't like gaskets...but if any exhaust gases escape to the atmosphere it'll spool slower and your BLM's will be out of whack. I run both header gaskets and a turbo flange gasket. I've got 'er sealed up tight. Ya' I know. They never had gaskets...but after a gazillion heat cycles...stuff warps.

Thx, yes I’ve done the headers a number of times.
I’ll pull the crossover off and see what’s going on with the ball n flange there. I have to do the pan gasket anyway so I’ll dig in. To me it looks like some stooge has been in there trying to fix the oil leak and installed the gasket wrong, but at the rear of block you can see ALOT of the rubber gasket hanging out from the pan. Almost looks like they missed the bolt holes in the gasket lmao WTF??
 :rolleyes;
Title: Re: New T codes 32 and 44
Post by: TexasT on February 11 2019, 09:55:13 PM
The gasket in question
Title: Re: New T codes 32 and 44
Post by: gusszgs on April 02 2019, 09:28:25 PM
Just an update guys. I FINALLY got the car running to perfection!
It was a combination of a number of things but mainly a serious DS header leak ( there’s a surprise uh) poor rotted vacuum lines, injectors and dialing the tune back in. Proper gapped plugs wires ect.

It’s running absolutely fantastic!
Just a big thank to EVERYBODY’S input! The cars can certainly be a challenge at times. It’s been 5 months almost to the day since I bought this, so definitely a lot of work in her. Still lots but real sweet having it running perfectly, all parameters on SM are bang on.
Title: Re: New T codes 32 and 44
Post by: Steve Wood on April 02 2019, 09:42:40 PM
It's a great feeling!  I'm glad you got there with it :)
Title: Re: New T codes 32 and 44
Post by: gusszgs on April 02 2019, 10:04:14 PM
Thanks Steve
Title: Re: New T codes 32 and 44
Post by: good2win22 on April 03 2019, 10:33:41 PM
Always nice to accomplish something. Glad for you now get out and enjoy it!
Title: Re: New T codes 32 and 44
Post by: gusszgs on April 07 2019, 12:13:08 PM
Thx Jason
Sneaky vacuum lines lol
Yes great feeling to have it running it think as good as a stock TR is capital of.
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