Code 34, MAF of circuit to low. 1987 pontiac GTA 5.7, digital dash

what could cause this car to keep burning out MAF sensors? went into depth below, hope you guys can understand it.


hey, im in a bit of a jam on this one and I was wondering if anyone would know how to go about solving this problem, or if anyone has had similar acts happen: Alright, first things first. I noticed my 87 GTA with the 5.7 was having a bit of trouble Idleing, so I put the diagonistic computer on it and it pulled the code 34. So I checked it with the test by disconnecting the MAF,and clearing the codes. pulled a code 33, so MAF is burnt out. no biggy.--> but thats when things started to get a little wacked. For about a week, it kept blowing the fuse by the battery, which I was told was the ECM fuse...maybe blew it twice..
afterwhich everything was splendid.again about another week, code 34 poped up again, MAF burnt out. from there I removed the computer containing a jetpro chip and replaced it with another stock computer, then took out my warranty on the MAF. again everything great. this time about 3 weeks down the road code 34. MAF gone again

I was also told the MAF could be bypassed and removed from the car completely, is this an option?

 

The only possible thing that may cause the MAF sensor itself to fail like that is if the burnoff is staying on all the time. There are two relays that control MAF operation, the power relay and the burnoff relay. They are usually side by side on the driver side firewall. They are also the same part number. Burnoff is performed by ECM command and it essentially overheats the fine wire in the sensor to clean it. If for some reason it is staying on it may explain the fuse popping and failure of this extremely expensive part. Better find it cause I guarantee they won't replace many more under warranty. If you have not replaced the relays, DO IT. They are cheap and many times are the problem when you get erratic 33, 34, 36 codes. You can convert to speed density using a MAP sensor and the info is here on the site. MAF is more accurate and faster responding than speed density. GM dropped it for a couple of years because of cost but they are back using it with the LS1, and the newer LS6 engines. At the very least you will probably need an inexpensive DVM and a wiring diagram handy. I would also question whether these sensors are actually bad. My advice, change the relays BEFORE trying a new sensor. GMSPO part# 14089936 (both relays).