i was lookin at some stuff on ebay for my 95 ls teg, and came across a chip for a p75 ecu. the company claims no speed gov, 8500 redline, enhances fuel and timing, and that it can change an auto ecu to a manuel. my question is how is that possible???? i ask cause i need an ecu, and i can get a auto for pretty cheap. is this something thats ok to do??

 

no that is not a good idea. mostly because the chip will make you run rich killing your mileage and shooting clouds of black smoke out the exhaust when you get on it. i dont think you can convert your ecu to manual without some other work. a chip alone wont do it.

http://www.pgmfi.org for more info

 

What's with http://www.pgmfi.org site? Anyone knows? I know that their forum still works.

 

i think you have to send the ecu to have the auto to manual conversion.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by doood &raquo;</TD></TR><TR><TD CLASS="quote">no that is not a good idea. mostly because the chip will make you run rich killing your mileage and shooting clouds of black smoke out the exhaust when you get on it. i dont think you can convert your ecu to manual without some other work. a chip alone wont do it.

http://www.pgmfi.org for more info</TD></TR></TABLE>

The Mugen/Skunk2 clones and possibly other bootleg tuner ROMs do not have the automatic code, so they will essentially make an Auto ECU run Manual with no codes. That is a poor way do this though. If you have a soldering iron you can convert the auto ECU to manual by removing two resistors and installing a jumper. A 5 minute job.

 

really? which resistors and jumper where? curious to know!

 

OBD1 auto-manual conversion
remove RP17 and RP18 (located just below the chip)
install jumper in RP18.

 

would it be the same for OBD2? or is there a difference?