I swapped mine over to MPFI yesterday, everything went in good and the car starts right up... but. When I step on the gas it hesitates bad. My timing is good, I checked for vac leaks, and double checked my wires.


I did swap the wires on the TPS around but when I went to set the voltage on it, the voltages were reading backwards and I was getting a code 7. I checked a spare harness just to make sure, and I need to have the wires in the DPFI locations to get .45v at idle. But here is the kicker I can even unplug the TPS or reverse the wires and it acts the same with the hesitation. But there is voltage going to it and it fluctuates when moved?

Anyone have any ideas or suggestions?

 

In looking for the answer to my question.... Does it matter which PM6 ECU you use? Mine is a PM6-A070.. I am seeing others in MPFI how to's using PM6-A090.

I found this thread and this is what is happening https://honda-tech.com/zerothread?id=931604. I which I have verified my dizzy wiring, the only one that is questionable are the 2 white wires but if you switch them the car wont even start.

 

It turns out the distributor was my problem. I put the si dizzy on another civic that is running fine and it did the same thing as on the car I was doing the mpfi swap on (starts and idles fine but when you give it gas it bogs down). Anyone know if these are easily rebuilt and are the part readily avalible for them?


Modified by Bignasty at 9:28 PM 8/2/2004