1989 startup lean and rich
#1
Pro
Thread Starter
1989 startup lean and rich
Hi guys, just tired and not sleeping well..which makes the car more frustrating.
A couple days ago my '89 again started dying seconds after starting. The exhaust smelled like it was real lean. This happens four of five times then catches and runs, warms up normally. Today it started, the same old business except the exhaust smelled really strong of unburnt fuel. It took about five tries and it caught and idled OK and I drove away. Since today it has restarted three times normally.
I cleaned the MAF last weekend. Last I checked checked the fuel pressure regulator it was OK. New IAC, TPS voltages normal. New cap, rotor and plugs. Injector coils checked OK, but I know that doesn't always mean much. Cleaned the throttle body recently.
When I first got the car, I could break the rear tires loose right off the line and on the next shift (automatic). I purchased new tires and that doesn't happen any more. Don't know if it is a symptom of what is going on right now or that the tires are hooking up better on takeoff.
I've started saving for my first pair of hearing aids and can't funnel much money towards the Corvette right now. A few suggestions (a little direction) however would be greatly appreciated.
Thanks!
A couple days ago my '89 again started dying seconds after starting. The exhaust smelled like it was real lean. This happens four of five times then catches and runs, warms up normally. Today it started, the same old business except the exhaust smelled really strong of unburnt fuel. It took about five tries and it caught and idled OK and I drove away. Since today it has restarted three times normally.
I cleaned the MAF last weekend. Last I checked checked the fuel pressure regulator it was OK. New IAC, TPS voltages normal. New cap, rotor and plugs. Injector coils checked OK, but I know that doesn't always mean much. Cleaned the throttle body recently.
When I first got the car, I could break the rear tires loose right off the line and on the next shift (automatic). I purchased new tires and that doesn't happen any more. Don't know if it is a symptom of what is going on right now or that the tires are hooking up better on takeoff.
I've started saving for my first pair of hearing aids and can't funnel much money towards the Corvette right now. A few suggestions (a little direction) however would be greatly appreciated.
Thanks!
Last edited by Went; 05-21-2014 at 06:18 PM.
#2
Start by pulling the codes and see if anything present
http://www.corvettephotographs.com/c4vettes/codes.htm
http://www.corvettephotographs.com/c4vettes/codes.htm
#3
Pro
Thread Starter
Start by pulling the codes and see if anything present
http://www.corvettephotographs.com/c4vettes/codes.htm
http://www.corvettephotographs.com/c4vettes/codes.htm
#4
Pro
Thread Starter
It appears it has set a code 33 MAF sensor high.
Terry
Terry