Look I know this has probably been posted a thousand times but I need help.

I have a 2000 blazer, drives fine, idles like crap, every now and again it will stall coming to a complete stop, has the three afore-mentioned codes and will not run all the I/m monitors after 2000 mi and more than I care to count drive cycles and money.

Any help will be appreciated as the inspection has been up since february here in good old LI, ny

I know that the tps sensor is probably bad , but everything else is less than 6 months old. I will get a voltage meter tonight too double check everything out.

Could these codes and or problems be the starter switch (electric component).

Desperate

Edit: Change MAF back to stock, did a couple of Drive Cycles i believe the Cat, 2nd air pump and EVAP monitors will not run or haven't yet (hard to believe as i have been driving 55mph to 20mph all weekend, I would hate to be stuck behind me right now

 

Intermittant low voltage to TPS sensor.

TPS is one of several sensors that share a 5 volt refence signal. If you have an sensor that is shorting out once in a while, it will throw these weird codes. My FTP sensor was shorting intermittedly. was setting the TPS sensor low code, MAF and MAP and egr codes also. Replaced the bad sensor and life was good again. I bet there is NOTHING wrong with that TPS!

 

After being pissed off at work all night, i decided to get my multi-meter an check everything that would cause the computer to dump fuel. Sure as **** the Granettelli MAF was out of range and f'ing the whole thing up put factory MAF back in and seems fine. won't know until i do the drive cycles YET AGAIN

What a sham this thing is I will be making a few calls to try and get my money back!!!!!!!!!!!!

 

Thanks for the quick reply

RIP, John "Uncle Jack" O'Neil