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> TPS not clicking injectors at key-on, am I missing something here?
rettigdw914
post Jul 27 2010, 08:07 PM
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I'll take any help I can get on this one. I had issues with the car bucking/ low power when driving, even to the point where power just goes away and lucky to get it home. Alot of popping from the exhaust like it is running lean.
I replaced my points with a compufire module which improved the starting but still have issues off idle.
Fuel pressure = 29 psi on the rail.
Timing is set at 27 deg. BTDC.

While troubleshooting, I noticed the info from Pbanders site about throttle switch calibration. I calibrated the switch and cleaned the contacts with alcohol and a pencil eraser on two different tps's.
I connected the tps and checked resistance at the ECU connectoer per the table on his site.
Between 9 and gnd - 10 indications on continuity
Between 20 and gnd - 10 indications on continuity
Between 17 and gnd - 0 ohms closed throttle, infinite open throttle

these all check out. I even checked the harness for all 4 wires back to the ECU and it is good.

When I key-on, I dont hear the 20 injector clicks I expectwhen I move throttle from closed to full open.
I even used two different ECU's one from a '73 2.0L and one from a '72, neither seemed to work.

This one has me stumped. Do I need to rotate the engine to get on a trigger contact or something?

BTW I have a '73 1.7
Thanks Don
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