Maf?
Thread Starter
Intermediate
Joined: May 2006
Posts: 38
Likes: 0
From: Gilbert Az
Maf?
Have an 89 that keeps surging I changed the MAF 4 times,and each time it corrects the problem for awhile.Around 30 to 50 miles,then the surging starts
No engine light and no codes Any ideas as to why this happens or what to look for?
No engine light and no codes Any ideas as to why this happens or what to look for?
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
What led you to replacing the MAF 4 times? do you have the FSMs?
typically if there is a problem in the MAF circuit it will set a code..33,34 or 36. Not saying a bad MAF will always throw a code, but it seems most likely your problem is else where. Need a little more information to help isolate the problem. What diagnostics have you done so far?
typically if there is a problem in the MAF circuit it will set a code..33,34 or 36. Not saying a bad MAF will always throw a code, but it seems most likely your problem is else where. Need a little more information to help isolate the problem. What diagnostics have you done so far?
Team Owner
Joined: Sep 2001
Posts: 62,127
Likes: 1,727
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
If youre going to just replace things, then you should be replacing the MAF relays. Both behind the battery on the firewall.
If they are bad, they'll kill a new MAF.
If they are bad, they'll kill a new MAF.
