Unit engine will crank over but will not start. Verified correct / on time spark. Not getting correct / any fuel. Unit will start, run then die on sniff of ether. Getting only 6.7 (& soemtimes 0) volts to LPG regulator & trim valve. Tested / checked / verified all fuses, relays & ECU module correct.
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Checked distributor wiring. Only 2 wires going into dist. & both appeared in good condition with no open circuits present upon visual inspection. Unit had battery voltage to regulator & injector today upon cranking engine over. Got engine to start with sniff of ether. Ran good at high idle. Runs rough at low idle & close to stalling. Shut engine off. Attempt to re start. Will not start unless ether it. Attempt to adjust fuel trim screw on regulator all the way in & out with engine running at low idle. Had no effect on runability. Drove unit. Unit runs excellent with plenty of power from low to max. RPM's. Any additional tips could give me? What is the resistor for next to the ecu?
I'll test the circuit. Thanks a bunch for the fast response!
Some of these had a problem with the "tach signal" wire that goes from the distributor to the ECU that sends a signal that the distributor is turning and then the ECU turns on the LPG. I think it is a black wire that is shielded. They break right near where it goes in the distributor.
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