BPB
NAXJA Forum User
- Location
- Battle Ground, Washington
1990 mj 4.0 ax15. The exhaust smells like fuel, i burned through $10 of gas in the driveway firing it up trouble shooting.
I have a parts motor that ran perfectly about two weeks ago. I swapped the fuel rail (with injectors), throttle body (with sensors), distributor, every sensor on the motor minus the o2 sensor and ckps. All to no avail.
Next I pulled the ecu wiring harness, thoroughly inspected it, cleaned every contact and used dielectric grease on all connectors I even soldered a couple factory crimped connectors. At the same time I swapped egr valves and installed a new gasket.
It ran great for almost a minute then it went to crap.
Then I bypassed the inline fuel filter with fuel line and bypassed the ballast resistor. this didn't help and the fuel filter wasn't restricted. Any Ideas?
I have a parts motor that ran perfectly about two weeks ago. I swapped the fuel rail (with injectors), throttle body (with sensors), distributor, every sensor on the motor minus the o2 sensor and ckps. All to no avail.
Next I pulled the ecu wiring harness, thoroughly inspected it, cleaned every contact and used dielectric grease on all connectors I even soldered a couple factory crimped connectors. At the same time I swapped egr valves and installed a new gasket.
It ran great for almost a minute then it went to crap.
Then I bypassed the inline fuel filter with fuel line and bypassed the ballast resistor. this didn't help and the fuel filter wasn't restricted. Any Ideas?
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