I just bought this guys 87IROC from him today. Here is his webpage of everything that is done to the iroc. www.geocities.com/leeson.rm

i need some help on getting it running properly and also some general questions about TPI answered.
The car run very well considering it has the stock 305TPI 5speed chip STILL installed.
I know a custom one is needed.
Well the car runs good. But after running it seems to just die. I get codes 33 and 34, about the spark timing curves and what not. I know that has to be due to the chip being the stock one. So once i can get a custom one made that should fix that right?

Also, the orignal TPI unit came with the cold start injector. Now that this one has the SuperRam injection on it the previous owner never put a cold start injector on it therefore it doesn't really seem to run very good while its cold. Now my question is do i need to put one on it or can i deprogram that from the system?


Brendan

 

thats weird, I wish I could help...

You don't still have his old TPI unit though do you?
If you do, email me @ burntblues@hotmail.com

thanks man, Mike
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1989 RS.. Newly installed 350,bored out 30 over, Hypereutectic pistons, double roller cam, double roller timing chain, accel wires, blue streak cap and rotor, rapidfire plugs, chevy caprice 350 chip, 200* fan switch.

[This message has been edited by burntblues (edited December 03, 2000).]

 

Wow.. that looks like a pretty nice iroc. Why would someone do all that work and not at least put a stock 350 chip in the car? I hope someone will help you with your problems. You might want to talk to a speed shop that specializes in tpi work. There is one down here in san diego. I don't know if there is one near you, but they might be able to give you some free advice.

 

I don't have the stock TPI.. i just got the car AS IS...
I know of a speed shop near by that i'm going to stop at after work and talk with.
Thanks for the help.

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1987 IROC-Z L98 350 SuperRam, Edelbrock Performer 6085 Aluminum Heads, LPE RollerCam 219/219, Crane Gold Race 1.6RR, TF 1 pc Chrome Moly Pushrods, Underdrive Pulleys, Edelbrock TPI High Flow Base Manifold, Accel 58mm TB, ADS 24#, Crane AFPR, K&N, Edelbrock TES Headers, Catco Hi Flow Cat, 3" Borla Cat-Back, Accel Cap & Rotor, MSD 8.5mm, MSD 6AL Ignition, MSD Blaster 2 Ignition Coil, Hayes Clutch, 1LE Aluminum DS, 94' Z28 Disk Rear, Wilwood Adjustable Proportioning Valve, Torsen Series 3 Posi Carrier, Precision 3.73 Gears, Southside Machine Sub-Frame Connectors, Hotchkis Lower Control Arms, KYB Shocks/Struts, Suspension Techniques Lowering Springs, Polyurethan Bushings all over the place, Moog Upper/Lower Ball joints and Tie Rods ends/Idler Arm,

 

Leirch,

For simultaneous codes 33 & 34 check the MAF power and burnoff control relays. A failing power relay would be my guess, or a bad connection at the MAF sensor itself.

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Later,
Vader
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"No matter how hard you try you can't stop us now"
Adobe Acrobat Reader 4.0

 

That's what i was thinking vader...But getting rid of that 305 chip wouldn't be a bad idea.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Problems every other day with the car (probably not a mod, but to me it sure makes a difference)