Strange Code 33 part 2
Thread Starter
Racer
Joined: Jul 2004
Posts: 389
Likes: 2
From: Howard Beach, NY
Strange Code 33 part 2
So I followed agent 86's diagnostic chart and it seems the code 33 is intermittent. It usually happens within 3 blocks of my house
when I check it with the scanner, the mass air will be steady around 10 or 14 grams and spike up to 85 grams for a split second and then back down to normal, which must be causing the code.
it's got all new relays, tried a different ECM and mass air sensor,TPS is also new, so i'm starting to think it's a pinched wire of some sort.
EDIT looks like the MAF return wire also connects to the black wire on the MAT and coolant temp sensors am i reading that right?
has anyone had an intermittent code 33 that turned out to be a pinched wire , or any other advice?
when I check it with the scanner, the mass air will be steady around 10 or 14 grams and spike up to 85 grams for a split second and then back down to normal, which must be causing the code.
it's got all new relays, tried a different ECM and mass air sensor,TPS is also new, so i'm starting to think it's a pinched wire of some sort.
EDIT looks like the MAF return wire also connects to the black wire on the MAT and coolant temp sensors am i reading that right?
has anyone had an intermittent code 33 that turned out to be a pinched wire , or any other advice?
Last edited by DrEvil11417; Jun 22, 2007 at 06:41 PM.
Thread Starter
Racer
Joined: Jul 2004
Posts: 389
Likes: 2
From: Howard Beach, NY
Just took it out for a ride w/ the scanner today - as soon as the code comes in, it looks like the O2 sensor cuts out and reads 0.00 or 0.01 volts .. is there any way an oxy sensor can trigger a code 33 and send the car into limp mode?
EDIT: WTF? I unplugged the O2 sensor... drove it around for 15 minutes, no S.E.S. light (code usually pops up after a block or two) , and the scanner reads .45 volts w/ O2 unplugged
EDIT: WTF? I unplugged the O2 sensor... drove it around for 15 minutes, no S.E.S. light (code usually pops up after a block or two) , and the scanner reads .45 volts w/ O2 unplugged
Last edited by DrEvil11417; Jun 24, 2007 at 05:43 PM.
