C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Idle/running problem

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Old Mar 11, 2003 | 06:14 PM
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From: Jackson MI
Default Idle/running problem

I took my car in to the dealership and they told me that my Pass key module is fried and I need a new one. So they showed me how to bypass it so I could drive the car home and when I did here's what happened. The car would not idle or run or anything more than one cycle through the cylenders. And if you pump the petal you can repeat the cycle through the cylenders. So 8 fires per pump of the gas petal. I somehow got the thing home but I need some advice on how to fix this. I wouldn't even know where to begin. Any help from you Guru's??? I'd really like to have my car running for the warm weather this week. Thanks guys :cheers:
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Old Mar 11, 2003 | 09:02 PM
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Default Re: Idle/running problem (lani's 93)

ok. lets clarify. This is not the PKE. This is te thing that reads the key resistor, I'm not sure what the dealer called it. They didn't screw anything up I brought it to them because it didn't start. They diagnosed the problem and I took the car because I didn't want to pay $700 to have them replace the module when I can do it for under $200. I need to know if the engine problems are because of this malfunctioning thing or not. Any suggestions would be helpful.
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Old Mar 11, 2003 | 09:08 PM
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From: Cincinnati, Oh USA
Default Re: Idle/running problem (mn_vette)

I have an 87 and it sounds like the dealer was talking about the VATS module which will allow the starter to crank and tells the ECM to pulse the injectors if it measures the correct pellet resistance on the ign key. The module can be bypassed by connecting a fixed resistor on the VATS module the same value as the pellet. Jumping the output of VATS won't work.
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Old Mar 12, 2003 | 09:05 AM
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Default Re: Idle/running problem (jfb)

I called the dealer up this morning and they told me it was part# 88999216 which GMpartsdirect.com told me is a Body multifunctional computer connector/module. Does anybody know if this module malfunctioning would cause the car to run like crap??
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