Car intermittently stumbles with a code 33..
Thread Starter
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Car intermittently stumbles with a code 33..
In the past few weeks my 89 has started to intermittently stumble at low speeds, it stumbles then picks back up and runs normal till its next episode, I dont have to be on the gas for it to happen, I can just be cruising along. I checked the codes and got a code 33 after clearing it once from the ECM . The scanner says (MAF/ MAP sensor to high) Could the stumbling Im getting be caused by the MAF burn off / Power relays or is it more likely the MAF itself. They also list one of the causes could be the ECM. I guess what I really want to know is, where do I start looking and testing. Im more of a Mechanical guy, Im not much when it comes to electrical..Thanks for any help...WW7
Racer
Joined: Jul 2004
Posts: 434
Likes: 0
From: Santa Barbara Minnesota
Code 33'
In the past few weeks my 89 has started to intermittently stumble at low speeds, it stumbles then picks back up and runs normal till its next episode, I dont have to be on the gas for it to happen, I can just be cruising along. I checked the codes and got a code 33 after clearing it once from the ECM . The scanner says (MAF/ MAP sensor to high) Could the stumbling Im getting be caused by the MAF burn off / Power relays or is it more likely the MAF itself. They also list one of the causes could be the ECM. I guess what I really want to know is, where do I start looking and testing. Im more of a Mechanical guy, Im not much when it comes to electrical..Thanks for any help...WW7
