well my car won't start and i am trying to narrow down the things that could be causing it.


i have a obd0-obd1 boomslang wiring harness and p28 chipped ecu.

i tired the p28 on a integra and it started up fine.

but then i put the harness and p28 into a DA integra 1991 automatic and it did not start.

so is it the wiring harness or since its a manual it won't start?

 

i searched and come up with different reviews

 

anybody?

 

make sure B7 is grounded when in the auto trans car. (clutch switch)

 

Nope. Integras use a seperate TCU to control an Auto tranny. Civics do not. The P28 does not support communication to a TCU. You will need a p75 Auto ecu or you could use a few other integra ECU's with custom components to run the manual ..but bottom line is a p28 isnt gonna do it. I dont deal much with Automatics...but I believe I am correct here.

 

okay thank you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BEST1TUNING.COM &raquo;</TD></TR><TR><TD CLASS="quote">Nope. Integras use a seperate TCU to control an Auto tranny. Civics do not. The P28 does not support communication to a TCU. You will need a p75 Auto ecu or you could use a few other integra ECU's with custom components to run the manual ..but bottom line is a p28 isnt gonna do it. I dont deal much with Automatics...but I believe I am correct here.</TD></TR></TABLE>

You are partially correct. The P28 ecu will not run the automatic car, but it should still start it. And not all integras use TCU's.

 

thanks!!!!! your the greatest. thats why i just bought another conversion harness from rywire!!??

 

Thanks for clearin that up for me blown90hatch...i had a feeling i might have been off a little.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">make sure B7 is grounded when in the auto trans car. (clutch switch)</TD></TR></TABLE>
the reason why I said that is not due to the TCU, the P28's B7 needs to be grounded (showing that the clutch is in or auto trans is in park/neutral) to allow the car to start... it will not even turn over if the pin is not grounded.

 

the car cranked and turned over fine. but thats all it did and a CEL came on.

that is all.