spooned out

Not new to swaps, but new to obd2/obd1. Anyhow just finished putting everything back together and now the problems. First time i started the car was using the P28ecu started fine no cel's..... Now i switched out the P28ecu and put in the P72 obd1 ecu and i get a solid cel.

tried jumping the ecu for codes but the cel stays solid so i unhooked the battery to try and reset the ecu then tried it again still solid cel! the car starts fine. Check all wiring, plugs and ground all seem to be connected. So i drove the car for a couple of mins maybe something will show. Car studders when it hits 3000rpm and no power. Tried checking for codes but i still got a solid cel.

Jdm b18c obd2 with stock si obd1 harness everything stock except blox manifold+hondata gasket.

my guess is bad ecu? P72 socketed ecu with no chip, running off stock chip. Shop i baught it from assured me that it was checked and good.

Anyone have any idea why i would get a solid cel?

spooned out

anyone with solid cel help. allready search.


solid cel = bad ecu?


Modified by spooned out at 2:39 PM 3/19/2005

castlenutz

yeah its prolly ur ecu. u have to get the p28 re-programed. i had to do the same :thumbup

neeks

ur stock obd1 wiring harness with a obd2 engine?
what obd is your oilpump, alternator, injectors etc?

spooned out

yes stock sohc si harness with obd2 engine ..... oilpump is stock was not aware there were any differences in year 94+ for oil pump except the ckp and was told it flows more... alternator is obd2 cut/solder and injectors are obd1 (sohc), dizzy is obd2 just rewired it (depined and repined) had to extend a few wires and switched vtec solenoid with the sohc since it does not come equiped with a pressure switch and did not want to wire for it...... my p72 took a dump and installed a chip p28 all problems are solved except the low idle 500 rpm..


Modified by spooned out at 2:06 AM 3/30/2005


Modified by spooned out at 2:09 AM 3/30/2005