Trying to help a friend get his car going. He took it for a short drive last week, and it died. well, it ran, but would not rev past idle. No power.

We towed it to his house. Upon further interrogation, he said there'd been some minor backfiring prior, when going down hill.

The afternoon it quit running, first thing I did was pull the AMM plug (ign off, of course), no difference.

Today, pulled back the timing belt cover, and all looks okay in there. Timing belt was done about 30k miles ago.

So, lets assume the timing belt did not skip teeth, and the AMM isn't the issue.. what could we be looking at?

We are dealing with the oddball Chrysler ignition, the earliest of LH injection. Wiring harness has been replaced and looks okay.

Fuel pressure? Maybe clogged filter? Weak pump? I'm rather at a loss. The thing barely starts at all now... And it's cold outside :)

Thanks for any thoughts in advance!
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-Matt I ♥ my ♂