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1988 Chevy Corvette Running Rich

Tiny
VETTE88
  • MEMBER
  • 1988 CHEVROLET CORVETTE
1988 Chevy Corvette V8 Automatic

my corvette is running rich i've replace the entire fuel system except the regulators which are good, just gave it a tune up. The problem occurs when it heats up, when its cold it runs fine but once it heats up it acts up and wont start again, the problem that occurs is when it heats up is when I switch gears example drive to park it will die unless I give it gas.
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Friday, November 21st, 2008 AT 1:56 AM

1 Reply

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
Most common problem with this engine is faulty mass air flow sensor and also the 2 relays, power and burn off. The bad mass air flow gives the computer a false air intake reading causing rich condition. Also double check ignition timing. If its off and it has not been adjusted recently then suspect a bad shaft inside the distributor causing timing to change. There are so many possible causes for this problem. Using a scan tool I would monitor coolant temp sensor to make its accurate because this also effects fuel air ratio. O2 sensor is very importatnt on this engine and double check the grounds at the thermostat housing, this is the computer ground.
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Friday, November 21st, 2008 AT 6:16 AM

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