Rear fuel injector issue on startup
07-12-05, 03:54 AM
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Rear fuel injector issue on startup
After removing the primary fuel injectors, cranking the engine, and briefly engaging the fuel pump switch, only the front injector fired. Is this a normal part of ignition? Could the engine be improperly reading a high boost value and cutting off the injection to the rear rotor? Might be worth keeping in mind that it is still in the relay-less form that I purchased it in :-/
Update: Swapped the front/rear injectors. The rear one is still the one that's out. Also, I have a reason to think that there's no break between the injector and ECU (both read about the same resistance between the injector connectors and chassis, with injectors removed).
Update: Swapped the front/rear injectors. The rear one is still the one that's out. Also, I have a reason to think that there's no break between the injector and ECU (both read about the same resistance between the injector connectors and chassis, with injectors removed).
Last edited by janm; 07-12-05 at 04:15 AM.
07-12-05, 08:01 AM
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update again: Found something lovely! A previous owner swapped the wires for the primary and secondary fuel injectors. Those got put back where they belong. Additionally they are not the stock injectors, which might have something to do with the new problem.
The rear rotor seems to have been the only one working the entire time, despite the fuel injection problems. When cranking the car, the front rotor spins, gets fuel, air, and spark, but doesn't even try to turn over.
Tomorrow I'm going to totally disconnect the rear rotor, and work solely on getting the front one going. Any suggestions as to where or what I should poke and prod?
The rear rotor seems to have been the only one working the entire time, despite the fuel injection problems. When cranking the car, the front rotor spins, gets fuel, air, and spark, but doesn't even try to turn over.
Tomorrow I'm going to totally disconnect the rear rotor, and work solely on getting the front one going. Any suggestions as to where or what I should poke and prod?
07-12-05, 11:52 PM
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I checked around at the CPU and other connections under the driver side dash. Didn't find anything loose, broken or worn. The connections I've checked out around the engine look good as far as I can tell, but I'm not sure if there's something really specific I'm looking for.
Is there a more limited area that I can focus on? Maybe some part of the harness that would directly affect the front rotor that I can work back from?
Meantime I'll check a few connectors more carefully. I'll try and see if anything loose maybe melted and is grounding or is overly corroded.
By the way thanks for the help so far, it's pushing things along when I get hung up
Is there a more limited area that I can focus on? Maybe some part of the harness that would directly affect the front rotor that I can work back from?
Meantime I'll check a few connectors more carefully. I'll try and see if anything loose maybe melted and is grounding or is overly corroded.
By the way thanks for the help so far, it's pushing things along when I get hung up
Last edited by janm; 07-12-05 at 11:54 PM.
07-13-05, 01:47 AM
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Could the non-stock primary injectors be causing the engine to flood when attempting to start?
ps. when cranking with leading or trailing plugs removed smoke comes from the open plug holes. Does this mean something?
ps. when cranking with leading or trailing plugs removed smoke comes from the open plug holes. Does this mean something?
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