norbi_cvc
May 4, 2008, 03:44 AM
Yes I know there're a few topics something 'bout this.
But I made all the troubleshooting steps.
My civic came with dpfi I/m, and I swapped to an MPFI.
What I changed: ECM (PM6 from d16a6 fourth gen civic)
Distributor (td 02u from d16a6 too)
Complete I/m with everything, and injector resistor (from d16a6)
I made the swap, every wire is in its proper place, but:
After I've finished the swap. I turned the ignition key, crank, but the car is only cranking.
I hear the main relay and it clicks and everything, fuel is delivered properly.
So I started troubleshooting: K test normal ecm seems to be OK
Spark test - NG there's no spark
Distributor input test OK
Ignition unit swapped with another one, nothing changed maybe I've 2 bad igniters?
Ignition coil seemed to be in spec when I measured with ohmmeter. Swapped with another one, but nothing happened, still no spark. Maybe I've 2 bad ignition coils?
Then I swapped the ignition unit with my known good one, but from a different kind of distributor, inputs are the same but the hold down screws are in a different place. Nothing, still no spark.
After all I guess my ignition coil is bad (and I've 2 bad ignition coils).
Is there something I forgot? Please help me out with your comments.
What else can I measure out and how.
Just want to update the measures of the ignition coils:
Cause the one I want to use is an older one I've checked the servise manual for 88-91 civic.
It says: between A and B term should be: 0,4-0,5 ohm. I measured both of the coils and they are 0,7-0,8 and 0,7-1,3 ohms. Between a and secondary winding the terms are within spec.
The interesting thing that I discovered: I measured my known good ignition coil for the dpfi distributor. Service manual says: between AB term. 0,6-0,8 ohm, I measured 0,9-1 so it isn't in spec but works fine.
So I've 2 bad ignition coils, right? (third one for dpfi distributor is working fine outside of the spec.)
But I made all the troubleshooting steps.
My civic came with dpfi I/m, and I swapped to an MPFI.
What I changed: ECM (PM6 from d16a6 fourth gen civic)
Distributor (td 02u from d16a6 too)
Complete I/m with everything, and injector resistor (from d16a6)
I made the swap, every wire is in its proper place, but:
After I've finished the swap. I turned the ignition key, crank, but the car is only cranking.
I hear the main relay and it clicks and everything, fuel is delivered properly.
So I started troubleshooting: K test normal ecm seems to be OK
Spark test - NG there's no spark
Distributor input test OK
Ignition unit swapped with another one, nothing changed maybe I've 2 bad igniters?
Ignition coil seemed to be in spec when I measured with ohmmeter. Swapped with another one, but nothing happened, still no spark. Maybe I've 2 bad ignition coils?
Then I swapped the ignition unit with my known good one, but from a different kind of distributor, inputs are the same but the hold down screws are in a different place. Nothing, still no spark.
After all I guess my ignition coil is bad (and I've 2 bad ignition coils).
Is there something I forgot? Please help me out with your comments.
What else can I measure out and how.
Just want to update the measures of the ignition coils:
Cause the one I want to use is an older one I've checked the servise manual for 88-91 civic.
It says: between A and B term should be: 0,4-0,5 ohm. I measured both of the coils and they are 0,7-0,8 and 0,7-1,3 ohms. Between a and secondary winding the terms are within spec.
The interesting thing that I discovered: I measured my known good ignition coil for the dpfi distributor. Service manual says: between AB term. 0,6-0,8 ohm, I measured 0,9-1 so it isn't in spec but works fine.
So I've 2 bad ignition coils, right? (third one for dpfi distributor is working fine outside of the spec.)