For starters I have an 1986 305 TPI trans am.

I started getting code 33 MAF high SES so I got new relays, new wells MAF, new O2 sensor. Set IAC & TPS. No Luck. code doesnt show on startup, only after a few minutes then it runs like crap too.

So I learned how to do the WinALDL and scanned it.
I went for a drive and the results are here:
http://www.geocities.com/cyberscorprio/9-24-log.xls

Notice the MAF readings look correct BUT look at the TPS reading -> all the way up to 60?! I just re-checked the TPS with a voltmeter and its dead-on, .54 V at idle and 4.3 V at WOT.

Soo, I am wondering do I have an ECM/PROM problem? One thing I noticed was the No a/c requested is always on, even if i try and turn it on. my car has a/c, though its never worked. maybe someone switched the prom? my ecm # is 16198259 which i read is the reman for 1227165.

suggestions? i would like to fix this thing.
thanks!

 

Find another program and try scanning your car. There are some other oddities in there. BLMs in the 40s and 200s and BPWs that are long enough to fire for a year.

 

BTW, the TPS reading will be higher with the engine running than it is with the engine off. If it is set properly the difference will only be about .02 volts.

 

OK, I reran winaldl and found that the LIVE data is correct, but when I LOG the data, its wacky.

I only have a 160 baud port on my '86, pin E on ALDL connector. There is no connector past G on the bottom row. So I do not think I can do 8192 baud.

TunerPro RT only does 8192 that I know of, even though I tried it did not give me correct readings.

What other software do you suggest?

 

Tunerpro has a 160baud ads file that I'd think would work. If not perhaps try Craig Moates' software.