error code 34and 43
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Joined: Oct 2004
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From: Clermont Florida
error code 34and 43
ok i keep getting a 32 and 43 code, engine light comes on and car runs like crap, ie...no power and seems like it misses, or starvin for air, and way i put in my key to run diags, then the engine light goes out and car run great, 43 is a knock sensor, but i think it may be coming up as well, cause of the 32, which i understand is a maf sensor, or ecm, other than testing ohms, on the maf, is there another way to isolate the problem, and can it be a map sensor a s well, cause if its bad it also throws a 32....thanks by the way i have an 87, with a 4+3
GO BUSH
GO BUSH
Last edited by legsandvettes; Nov 2, 2004 at 08:40 PM. Reason: FORGOT TO EXPLAIN MY YEAR VETTE
Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Your year doesn't have a MAP, but if you're using a generic shop manual, it's easy to get confused. Make sure the air tube is tight and not leaking air and then the best test for the MAF is to disconnect it and see if it will at least start and stall - After it stalls, see if it will start and run. If so, you probably need a new MAF. Otherwise, the relay may be shot. See if there is battery voltage to the MAF on the Purple wire, terminal E, with the key on. If not, the Relay may be all you need. If the voltage is there, it's probably still the MAF.
For the 43, check the connection at the knock sensor.
For the 43, check the connection at the knock sensor.
Team Owner
Joined: Aug 2000
Posts: 40,156
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From: San Pedro CA
I have found that weak or failing MAF sensors can cause all sorts of drivability problems.
check the wire to the knock sensor, its near the exhaust, and that wire can break.
check out my "sticky" post at the top of the page regarding early C4s.
check the wire to the knock sensor, its near the exhaust, and that wire can break.
check out my "sticky" post at the top of the page regarding early C4s.
Team Owner
Joined: Jan 2003
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From: Summerland B.C. Canada
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Joined: Jan 2002
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From: W.V.C. Utah
Originally Posted by bogus
I have found that weak or failing MAF sensors can cause all sorts of drivability problems.
check the wire to the knock sensor, its near the exhaust, and that wire can break.
check out my "sticky" post at the top of the page regarding early C4s.
check the wire to the knock sensor, its near the exhaust, and that wire can break.
check out my "sticky" post at the top of the page regarding early C4s.
