MAF and Lean error codes
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 46
Likes: 0
From: Hampstead NC
MAF and Lean error codes
I have been having trouble with my 89 idling rough, the idle jumps around randomly when warming up. Normally it idles at 800 very smoothly, occasionally when stopping after running a while it will start idling at 1500. Also it runs rough when cold and backfires through the intake. Additionally, I can be running along fine and the Service Engine light will come on and the car will begin running rough, if I turn it off and restart it and everything clears up.
I took it to the shop today and they said it was throwing MAF and a Lean engine error codes.The garage suspected the MAF which I have never replaced. The car only has 18K on it, I bought it with 14K and have replaced everything from injectors to the fuel pump.
My thought is to replace the MAF, power and burn off relays.
I am looking for opinions on their diagnosis, and recommendations on where to get the MAF, I see rebuilt ones at Eckler's, are they any good? Or should I just by a new one. Any help and advice would be appreciated.
I took it to the shop today and they said it was throwing MAF and a Lean engine error codes.The garage suspected the MAF which I have never replaced. The car only has 18K on it, I bought it with 14K and have replaced everything from injectors to the fuel pump.
My thought is to replace the MAF, power and burn off relays.
I am looking for opinions on their diagnosis, and recommendations on where to get the MAF, I see rebuilt ones at Eckler's, are they any good? Or should I just by a new one. Any help and advice would be appreciated.
Drifting
Joined: Nov 2009
Posts: 1,341
Likes: 2
From: Perth Western Australia
St. Jude Donor '10
I have been having trouble with my 89 idling rough, the idle jumps around randomly when warming up. Normally it idles at 800 very smoothly, occasionally when stopping after running a while it will start idling at 1500. Also it runs rough when cold and backfires through the intake. Additionally, I can be running along fine and the Service Engine light will come on and the car will begin running rough, if I turn it off and restart it and everything clears up.
I took it to the shop today and they said it was throwing MAF and a Lean engine error codes.The garage suspected the MAF which I have never replaced. The car only has 18K on it, I bought it with 14K and have replaced everything from injectors to the fuel pump.
My thought is to replace the MAF, power and burn off relays.
I am looking for opinions on their diagnosis, and recommendations on where to get the MAF, I see rebuilt ones at Eckler's, are they any good? Or should I just by a new one. Any help and advice would be appreciated.
I took it to the shop today and they said it was throwing MAF and a Lean engine error codes.The garage suspected the MAF which I have never replaced. The car only has 18K on it, I bought it with 14K and have replaced everything from injectors to the fuel pump.
My thought is to replace the MAF, power and burn off relays.
I am looking for opinions on their diagnosis, and recommendations on where to get the MAF, I see rebuilt ones at Eckler's, are they any good? Or should I just by a new one. Any help and advice would be appreciated.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
I would suggest replacing the MAF relays first. If that solves your problem then you just saved yourself a lot of money (and aggravation -- finding a good deal on a MAF is a real research project).
Intermediate
Joined: Mar 2012
Posts: 44
Likes: 0
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 46
Likes: 0
From: Hampstead NC
Thanks! follow up question
I think getting the diagnostic's is a good idea. It looks like the Moates ALDU1 & Cabl1 combination will let me hook it up and connect to any software package. Any recommendations on software? It's tough to tell from the web sites which would be best. TTS Datamaster looks to be the most comprehensive, but Tunerpro looked good as well.
