Small Block & Big Block Chevy Specific Mouse & Rat Motor Discussion & Conversions

305tpi issues

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Old Jan 7, 2009 | 09:35 PM
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Default 305tpi issues

My buddy just bought an 88 rs 305tpi, well where having idle issues. Supposbly all the sensors are new. But its been acting up it wont stay running it'll just bog down, hesitates an stuff. He said recently it just revved up an wouldn't go down. I'm guessing its the throttle position sensor since my 93 did the same thing. But, we can't seem to retrieve codes from it, the engine light will just stay an not flash will i use my little key for obd-1. I also thought it was weird sense it had a mass air-flow sensor, but we couldn't find a map sensor or iat sensor? Were stumped and he's a good friend any help at all appreciated
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Old Jan 8, 2009 | 10:02 AM
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My buddy bought a 90 IROC that did the same thing, he had the same issues, he replaced everything he could and it still was acting funny, i will give him a call and see what it ended up being.
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Old Jan 8, 2009 | 11:11 AM
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Originally Posted by Kmaroman
My buddy just bought an 88 rs 305tpi, well where having idle issues. Supposbly all the sensors are new. But its been acting up it wont stay running it'll just bog down, hesitates an stuff. He said recently it just revved up an wouldn't go down. I'm guessing its the throttle position sensor since my 93 did the same thing. But, we can't seem to retrieve codes from it, the engine light will just stay an not flash will i use my little key for obd-1. I also thought it was weird sense it had a mass air-flow sensor, but we couldn't find a map sensor or iat sensor? Were stumped and he's a good friend any help at all appreciated
First off RS's didn't com with tpi. Second you mass air sensor might be the culprit or your ecm, it could be a multitude of things. Check thirdgen.org you will get better answers over there.
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Old Jan 8, 2009 | 01:38 PM
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sorry i mean't iroc Z, oh and thanks zones
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Old Jan 8, 2009 | 10:01 PM
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He replaced the TPS and mass air is what my buddy replaced.
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Old Jan 8, 2009 | 10:15 PM
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cool man thanxs for the help
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Old Jan 8, 2009 | 11:38 PM
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Originally Posted by 87silverbullet
check thirdgen.org you will get better answers over there.
+1...
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Old Jan 13, 2009 | 04:00 PM
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Originally Posted by Kmaroman
My buddy just bought an 88 rs 305tpi, well where having idle issues. Supposbly all the sensors are new. But its been acting up it wont stay running it'll just bog down, hesitates an stuff. He said recently it just revved up an wouldn't go down. I'm guessing its the throttle position sensor since my 93 did the same thing. But, we can't seem to retrieve codes from it, the engine light will just stay an not flash will i use my little key for obd-1. I also thought it was weird sense it had a mass air-flow sensor, but we couldn't find a map sensor or iat sensor? Were stumped and he's a good friend any help at all appreciated
If the light stays on and wont flash, that's the sign of a bad ECM.
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