Ihave a 1992 jetta that just shuts down when it feels like it i have changed fuel pump, relay, ecm, dig relay, got spark at the coil and from the plugs, timing belt good fuel in tank and can hear the pumps when the key is on pulled plugs and they are dry as a bone it seems like it,s getting no fuel pls help
Check the ground from the motor to frame or any other grounds assciated to motor.i had the same problem with my 92 and replaced distributer,fuel filter,among many other things only to find a bad ground,,,,,grounds are very important on older jettas try that and let me know if that was it, email@example.com brantford ontario ,canada
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code p 0230 refers to fuel pump relay---circuit malfunction===causes --wiring---fuel pump relay-- ECM
check wiring for bad connections
replace the ECM with a known good unit as it may be breaking down electronically in the circuit that controls the pump relay
Check the pressure regulator as well as it reports to the ECM to shut off the pump relay when the fuel pressure is reached and not being used
run the fault codes and check for problem ECM
There is an electronic component failure in the injector circuit that when over heats , shuts that injector circuit down
try replacing the ECM with a known good unit
Underhood fuse block swap out relay #7 thats the ECM relay. Ground Circuits Using a DVOM, touch negative voltmeter lead to a good ground. Touch positive voltmeter lead to each ground terminal. With vehicle running, voltmeter should indicate less than one volt. If reading is greater than one volt, check for open, corrosion and loose connection on ground lead. See ECM GROUND LOCATION table for ECM ground location. Page 1 of 1 SYSTEM/COMPONENT TESTS - 2.6L EFI -1994 Isuzu Rodeo
Check the fuel pumps operational value and, check the fuel pumps fuse and relay. If the fuel pump check out OK, i would then replace the(ecm).
You want to make sure the fuel pump is functional before you replace the ecm. The distributor ha sa on board CMP(camshaft position sensor), that will shut down the spark and fuel pump if it is malfunctioning.