MAF question
05-29-2017, 10:22 PM
#1
Le Mans Master
Thread Starter
MAF question
I'm having a bit of trouble with a code 36 which I know every other person with a C4 has had the same problem. I think I know where mine is coming from though. Recently I ordered a new maf, when it came in it was identical on the outside but the inner was completely different. I have reason to believe this maf is a newer model that does not have a burnoff circuit in it. My '85 has the 165 ecm and the maf I ordered was supposed to be for an '86. My tuner says he can tune out the code 36 but I am concerned that this wrong maf will never work right in my car. Does anyone know anything about this? FWIW I have put new relays in just to be sure they weren't the problem, all wiring has been traced and tested for continuity and it all is correct.
05-30-2017, 10:49 AM
#2
So turn off the code 36 and let your tuner do his thing. If the car drives and performs to your expectations - wha la - you are done ! If you and/or your tuner are unhappy take a look at my MAF solution !!! greg
05-30-2017, 03:24 PM
#3
Le Mans Master
Thread Starter
I am completely willing to let the tuner "do his thing" but I want to know if the maf I have is going to work like it should. I can't help but think I should just get the right maf.
05-30-2017, 06:40 PM
#4
Melting Slicks
Buy a new MAF the 85 is a one year only, however the 88 MAF will work.
Be careful where you buy the MAF from, some are selling some copy that looks the same outside but not inside.
See pictures below, I finally got the correct one from Ecklers after the one from corvette central did not work.
Corvette central crap copy ....
What my old one (that was still working) looks like...
Last edited by gerardvg; 05-30-2017 at 06:41 PM.
05-30-2017, 07:08 PM
#5
Race Director
You'd THINK remans would be easy enough to get close...considering the 15% "fudge factor" our ECMs can correct...though 85 is definitely the earliest, most finicky generation.
If it were me, I'd be more inclined to find a salvage MAF rather than take a chance. Unless I'd just "built" a motor and needing complete refueling anyway.
05-30-2017, 11:17 PM
#6
Drifting
Member Since: Nov 2015
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Is tuning the only way to nuke code 36?
Can't believe these things don't have a working replacement, just doesn't make sense. Now hearing typical replacements don't even measure remotely the same.....
Can't believe these things don't have a working replacement, just doesn't make sense. Now hearing typical replacements don't even measure remotely the same.....
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05-30-2017, 11:23 PM
#7
Melting Slicks
Hi
replacement maf will work fine, no need to program a chip. I am running a blower through my maf and the car runs great, did not need a special chip for it to work fine.
The maf error code should be left alone, if its high or low volts causing a code its a major problem.
Been running a blower for around 10 years, have never seen a maf code.
replacement maf will work fine, no need to program a chip. I am running a blower through my maf and the car runs great, did not need a special chip for it to work fine.
The maf error code should be left alone, if its high or low volts causing a code its a major problem.
Been running a blower for around 10 years, have never seen a maf code.
05-31-2017, 02:48 AM
#8
Race Director
06-01-2017, 03:54 AM
#10
Le Mans Master
Thread Starter
Yes
Buy a new MAF the 85 is a one year only, however the 88 MAF will work.
Be careful where you buy the MAF from, some are selling some copy that looks the same outside but not inside.
See pictures below, I finally got the correct one from Ecklers after the one from corvette central did not work.
Corvette central crap copy ....
What my old one (that was still working) looks like...
Buy a new MAF the 85 is a one year only, however the 88 MAF will work.
Be careful where you buy the MAF from, some are selling some copy that looks the same outside but not inside.
See pictures below, I finally got the correct one from Ecklers after the one from corvette central did not work.
Corvette central crap copy ....
What my old one (that was still working) looks like...
The 85 uses a one year only MAF, one year only ECM, and one year only burn-off module. These three components work together, and IIRC, there is no Code 36 in an 85.
In 86 the ECM changes to the venerable 165, which is what the OP indicates he has. The 165-controlled MAF system has a burn-off relay (not a module), and a different MAF.
So I'm a little confused by the OP asking about sourcing a "1985 MAF". I understand that the current replacement doesn't look like the one he took out, but a MAF that will work on an unaltered 1985 should not work on a 1985 that has been updated to the 165 ECM and burn-off system.
If the OP is uncertain as to what MAF he needs, or is uneasy about how it will run, I feel he should refer to his tuner's opinion and input. Especially if this tuner did the conversion to the 165 system. Let the guy that did it, fix it.
In 86 the ECM changes to the venerable 165, which is what the OP indicates he has. The 165-controlled MAF system has a burn-off relay (not a module), and a different MAF.
So I'm a little confused by the OP asking about sourcing a "1985 MAF". I understand that the current replacement doesn't look like the one he took out, but a MAF that will work on an unaltered 1985 should not work on a 1985 that has been updated to the 165 ECM and burn-off system.
If the OP is uncertain as to what MAF he needs, or is uneasy about how it will run, I feel he should refer to his tuner's opinion and input. Especially if this tuner did the conversion to the 165 system. Let the guy that did it, fix it.