https://www.icloud.com/numbers/03NO4...0170731_170053 here's my fuel trims can anyone tell me what these numbers mean in attempt to fix my car
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Was your engine at full operating temp for that test?
Your short term trim on both banks is 0. Normally the STFT should hover around 0 but they're never exactly 0. Long term trim on both banks is 10. That could be caused by several things. I suspect you did that test with a cold engine.
The big question is why are you testing your fuel trims?
Last edited by flyfishvt; 08-01-2017 at 06:33 AM.
Bleed your cooling system http://forums.bimmerforums.com/forum....php?t=1709482The ULTIMATE OEM Alarm/Keyless thread http://forums.bimmerforums.com/forum....php?t=1792200
My car has been bogging and randomly loosing power so I smoke tested my car fixed the leaks I found and it still bogged, im getting a p1353 cylinder 6 misfire with fuel cut off and I've replaced plugs and coils, the car has a new maf the only other way it could point is fuel issues. The engine was warm when I did this
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Have you checked fuel pressure?
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If a single cylinder is the problem, perform a compression test,
this will indicate and confirm condition between individual cylinders.
Btw, have you tried swapping injectors? The misfire should follow the bad injector,
that is-if-compression is equal across all cylinders.
Here is an updated one where I unplugged the maf and let it find itself and then plugged it back in so the long term numbers will be gone, 193 is where the long terms are gone. My fuel trims increase with throttle and you can see that where I revved the car up to 3000. I checked my compression and it's good on all cylinders and I don't have a fuel pressure gauge but I can rent one from a local auto parts store.
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Swap injectors#(1X6)
Perform a cylinder leakdown test.
Btw,e36 or e46?
Last edited by MIKYZZ4; 08-29-2017 at 12:54 PM.
E46
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Fuel pump
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