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

engin problem on 88

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Old Nov 16, 2001 | 03:37 PM
  #1  
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fastrob
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From: sunrise fl
Default engin problem on 88

i noticed that my cars engin was running a little funny first it will idle funny like a it revs up and down a little and when i get on the throtle when i am driveing at high rpms i get a knocking sound and i get the check engin light but if i drive it normal no knock and no check engin light help dont want to mess my car up :confused: :sad:
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Old Nov 16, 2001 | 06:48 PM
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Hawaii89vette
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From: Honolulu Hawaii
Default Re: engin problem on 88 (fastrob)

Check for Error Codes. Could be a defective MAF (Mass Air Flow sensor) or TPS (Trottle Position Sensor).

-Tim
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Old Nov 17, 2001 | 02:47 AM
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From: Stuck in the 80's
Default Re: engin problem on 88 (Hawaii89vette)

Check the relays to the MAF sensor (two behind the battery), should read 14 Ohms, if not replace, they are only about ten bucks. Then clean the Throttle Body and IAC.

I had the exact same symptoms on my 88 and that did the trick!
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Old Nov 17, 2001 | 12:08 PM
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From: sunrise fl
Default Re: engin problem on 88 (gbody5)

what is the iac and what do you use to clean the t/b ? p.s thanks for your help :cheers: :flag
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