senorv47

I've been having an issue with code 33. I purchased a new MAF and still got code 33, I contacted the company and they sent me another new MAF but still I get code 33. I have replaced all the relays so that is not the issue. However unlikely that I have received to bad MAF's if I can send them to someone with an 88 and physically test them that would clarify at least that issue. If someone will test them for me I will cover shipping both ways. Please PM me with your shipping address and I will get them out ASAP. I am in Maryland.

Thanks in advance

rlane5

Did you check the connection the the MAF sensor, sometimes the terminals get corrodded

senorv47

Yes, I've pretty much exhausted everything. If the MAF's are faulty I can go back to the company with proof and get my money back.

MrWillys

The MAF high diagnostic of 45 grams per second may need to be increased in the programming if the vehicle has been modified.

senorv47

Thanks but I haven't modified it. At least not on my watch. I know of
no modifications from the previous owner other than the hypertech chip that I removed when I first bought it. Went back to stock configuration. What the issue was initially that is had an intake leak which I repaired.

MrWillys

Maybe this can help you:

http://www.chevythunder.com/maf_code_33.htm

senorv47

Appreciate the link. I have done this test three times with the same conclusions bad maf and a have swapped out two new mafs which I am asking if someone to test for me.
Thank you. If you know someone that can test these for me that would work

Hooked on Vettes

I sent you a PM.
I'm in Annapolis.

WW7

I purchased and was sent 3 different maf sensors from a company in Pennsylvania that rebuilds them for alot of the local stores..All three of the maf sensors were bad and one was so screwed up my car wouldn't even start..The guy that was tuning my car at the time said it looked to him like they rebuilt them, but didn't build them to spec..They were off spec so bad he couldn't finish tuning my car until I got something better...I ended up getting a custom maf sensor from a company called "Blower Works".. They inserted their bin files into my chip so the maf sensor would work with my car, I have been a happy camper ever since..Car runs better then it ever did with the old maf sensor. The moral of this story is ( most rebuilt maf sensors are crap)..WW

Go to the Blowerworks site below and look under (GM L98 maf sensor) scroll down to the 4th picture and discription to see what they have for your car....

http://www.blowerworks.net/
.
.
.
.
.

senorv47

Great, that is probably what happened to me. I am sending them off to a forum member to have them tested in his car. We will see what the results are. I am with you they are probably but off spec but I need to confirm that. I will check out blowerworks.

Thanks

senorv47

Got it PM sent

senorv47

PM sent

senorv47

UPDATE: Thanks to a member of the forum my MAF's were tested and the calibration was not consistent with good operation in my 88 so I shipped them back to the seller and received my money back. Thank Hooked on Vettes. I should be receiving a used
Bosch MAF in the next few days.

senorv47

UPDATE: Solution was MAF I picked up a Bosch Standard reman for $59 on Ebay. Received it today and installed it "NO CODES" The MAF's I previously purchased were not calibrated properly so I got my money back from the company and bought this one.