whats code 34?

 

34. Low voltage (high vacuum) at mass air flow sensor (or MAP sensor),
you have a maf not a map sensor. check your connections at the maf sensor and at all of the maf relays. .also check your tps voltage.

 

can a bad burn-off relay cause this?

------------------
89 GTA
Rice....it's whats for dinner

The left lane is for passing...if you aren't passing get the f*ck out of my way!
Proud memeber of the South Jersey Fbody Crew(all 2 of us!)
http://www.hometown.aol.com/clarkemustgonow

Tony

 

anyone?

 

A bad burn off relay will cause code 36 to trip. That is what mine is doing right now, will post results of my troubleshooting later.

 

How do u test your TPS voltage?

 

ok what if the TPS is adjusted fine? Time for a new MAF?

 

88blkiroc , to test your voltage you need a digital voltage meter. https://www.thirdgen.org/newdesign/tech/tpimod2.shtml this link will help.

fly89gta, if the tps is fine and all the connections are CLEAN.(use alcohol), then i'd go for a new maf.. make sure you have checked everything else, maf are expensive.

 

i know...i'm gonna try EVERYTHING else before getting a new MAF...that is my last resort

------------------
89 GTA
Rice....it's whats for dinner

The left lane is for passing...if you aren't passing get the f*ck out of my way!
Proud memeber of the South Jersey Fbody Crew(all 2 of us!)
http://www.hometown.aol.com/clarkemustgonow

Tony

 

I had the same problem too. I had already changed the MAF sensor (wish I hadn't), and still kept getting the code. So I went to the relays, they may operate if you check them by applying power to the coil but if they have any buid-up on the contacts then the voltage going across will decrease. And that's when you get that low voltage code. Try either taking the relays apart and cleaning the contacts or replacing them.
It worked for me, try it.