no spark

[pbrizzle86]

just did the mpfi swap and the car will not start. there is no spark at all from the dizzy so i was wondering is there any way to test the dam thing and if it needed to be wired difrent then the dx dizzy does besides the cps? dont know what to do anymore driving me nuts

[Christ]

There are two white wires coming off the dizzy... first, try switching them and starting the car again, if that don't work, check to make sure that all your wires on the dizzy side match the colors on the harness side of the clips

Then, get a service manual from your parts store, and it will explain the procedure for testing the coil, but if the car started with the DX dizzy, just swap the coils out anyway. it's not difficult, and it will tell you immediately if the problem you're having is the coil.

[pbrizzle86]

so its not the dizzy itself i know but i only get spark when i turn the to the off postion from the on position i get a pop in the maifold when i do this all the wires from what i can tell are hooked up right there are 2 of the same white wires and when i switch them around i either get this pop or i dont get it but when it dosent pop i have no spark at all

[turtlecrxsi]

Sounds like your backfiring into your intake manifold. I think that means your timing is 180* off.

[pbrizzle86]

so how do i fix that or check it the car ran fine before when i had the dpfi on there so how would the timing be off

[Christ]

Did you replace the head or timing belt? if so, check that it's installed correctly, and all the marks line up where they're supposed to,

Pull the cap off the dizzy, then take it out of the head, Turn your engine to TDC #1 cyl, then turn the rotor inside the dizzy until it faces the bottom right corner as you're facing it, then reinstall it.. should slide right in, may displace the rotor one degree or so, no matter

reinstall wires, and cap, then attempt to start again

It's NEARLY impossible to install a D series dizzy 180 out, but it's happened before... anyway, check all that, then post back.

[pbrizzle86]

it was a combo of the ecu i was using and the firing order had the right order but had it started wrong on the dizzy. got it started fired right up and purrrrded very happy with the result of the mpfi install wasent hard but had the wrong ecu and the firing order was just stupid on my part

[Christ]

The ECU that you were using was a PG7, correct?

If so, this should work for you, though you might get some check engine lights b/c of sensors that you don't have... not sure about that, not really familiar with that particular ECU.

Anyway, Hope you're happy with the swap, you're one more honda fan reaffirmed by his own learned skills.

[pbrizzle86]

so with the car running fine i thought i would take the pm6 out and see if the pg7 would work but the car would not fire it just cranked and i got a check enine light. put the pm6 back in and it ran perfect again

[Christ]

Best guess, the PG7 is dead or something is screwed up in it... or the wiring is diff for the car it came from VS the one you're putting it in.