TPS not clicking injectors at key-on, am I missing something here? |
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TPS not clicking injectors at key-on, am I missing something here? |
rettigdw914 |
Jul 27 2010, 08:07 PM
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#1
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Newbie Group: Members Posts: 16 Joined: 17-September 04 From: Greenwood, IN Member No.: 2,774 |
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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