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

87 Corvette..has A Problem

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Old Jul 3, 2007 | 12:09 PM
  #21  
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alright, so the man who installed my headers just unplugged my 02 senors and never did anything with the computer...so a tech i talked to said that the cars computer is looking for the 02's and thats why it is having such a rough idle and cutting out....anyone had a similar problem or do you know if there are any 02 simulators for an 87...i seen them on tpis but they are for an obd2 set up
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Old Jul 3, 2007 | 12:52 PM
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Have you checked the EGR valve. This can cause your problem if it is staying open, i.e. pintle hanging up or solenoid not venting off.
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Old Jul 5, 2007 | 10:57 AM
  #23  
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the egr is blocked off, the car has no emissions at all on it...
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