Pelican Parts Forums - Ignition Problem

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Ignition Problem

My 89 Turbo is experiencing ignition cutout. This was verified by a dynamometer shop showing complete ignition cutout around 4000 rpm. So far I have replaced plugs, plug and coil wires, coil, DME relay, cap and rotor. All these are new parts and I still have the cutting out. Today I swapped in another 89 Turbo DME and KLR computer and still had the problem. Anyone have any ideas about what is causing this problem? It happens almost all the time and happens whether I am rolling the throttle on slowly or during WOT. The engine dies momentarily and then picks up again with a pop out the exhaust when the flame is relit. Ground problem? Supply voltage problem to the coil? I'm stumped. Help please.

Steve

Throttle Position Sensor???

gb

DME. Has it been "chiped"?

Quote:

Originally posted by SoCal Driver
DME. Has it been "chiped"?

Yes currently running Guru 18 psi chips but scince I swapped in another DME and KLR with a different chip set I eliminated both the DME and KLR boxes along with the chips as culprits. Bad logic?