DarkBB4

I just installed a JDM obd1 p13, and now I have a cel for 14 (iacv) and the car is running like garbage. Low idle, jerking, the works.... When i swap back to my p28, it runs fine!! I opened up the ECU, but i didn't see any burnt components or anything.

Ive never had an issue w/ my iacv, and the electirical connections are fine....

WTF?!

Acidcrakker

On your uberdata program, who tuned it?

YOu can tune an ECU to function without an IAVC that might be your issue. Your IAVC might actually never have worked right.

Also why are you switching ECU's?

DarkBB4

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Acidcrakker &raquo;</TD></TR><TR><TD CLASS="quote">On your uberdata program, who tuned it?

YOu can tune an ECU to function without an IAVC that might be your issue. Your IAVC might actually never have worked right.

Also why are you switching ECU's?</TD></TR></TABLE>


its a basemap from j-k-tuning.com, im not sure if its disabled or not.... I'm switching to the P13 to spray nitrous w/ the zex management system. I dont want to run on a basemap, and i cant afford 300$ for a tune at the moment

DarkBB4

is that the only possiblity?

should i try cleaning it?

mgags7

I would just assume that the p13 is bad here.

See if you can find another ecu to try from a friend or something.

98vtec

test the IACV output at the ecu and make sure its getting the correct voltage.

DarkBB4

what is the correct voltage?

i just swapped iacv's and im still getting a code

98vtec

with the ignition on, the yellow/black wire (ground) should get battery voltage.
If yes, test the voltage at the ecu and body ground - http://technet.ff-squad.com/wiring.obd1.htm - connector A, pin 9. Should get battery voltage

If yes, jumper the IACV pin (9) with the A23. The iacv should click. If it doesnt click try another ecu.