A year or so ago I ran into a deer with the IX. It fell onto the hood of the vehicle, busting out the two left headlights, and landing denting in the hood pretty well. Ever since, the car has run extremely rich. Car ran like a champ before the accident. Radiator was junk, replaced with one I had around. had to pull the front part of the car out with a forklift, it was bent in so that the radiator was pressed against the engine fan. Put on a new fan and clutch as well.
Vacuum smoke test: good, no leaks
Timing belt, water pump: New, timing is spot on. Checked multiple times.
Coolant sensors: New
Crank sensor: tried others.
-as an aside, the current one on the car is the original, it's solid metal and seems to touch against the mounting bracket.
Airflow sensor: Swapped with known working ones out of three different 325i.
Spark: fat and blue. sparking on all cylinders. New plugs.
Distributor, wires: good. Swapped.
Plugs: ALL carbon fouled, very rich smelling exhaust
Check engine code: none.
Injectors: cleaned, swapped, seem to spray fine and not leak
Cat is clean, dropped exhaust. Swapped exhaust. 02 sensor is new.
Alternator and voltage regulator: good. Wiring: good. 13+v at battery.
Fuel pressure: good.
FPR: Good, swapped.
FPR vacuum: good.
CCV: Good.
ICV:swapped with known working. No luck.
Grounds: one frayed. Replaced, cleaned mounting points, beefed up ground wires. Hood ground is now gone.
Compression: about 10-20 psi low on all cylinders, leak-down test indicates worn piston rings, not blown head gasket. Head gasket was new before accident.
When the car is started, it fumbles all over itself, specific amounts of 'gas' (pedal push) will make it rev up for a minute or so, but it will not idle on it's own for more than a few seconds, sounds like a stroker off timing or a lawnmower lol.
If I disconnect the airflow sensor, I can drive it, kind of. Anything over half pedal-push will make the car cut out, but between 1/3 and 1/2 pedal push the car seems to behave. Doesn't sound like it's missing, there's just almost no acceleration to be had.
I'm running out of ideas over here. It has to be something electrical, and it has to have been damaged by the accident. The deer hit the front left side of the car pretty well, by the airflow sensor. I've checked through the wires looking for visible damage to no avail, found this and that for wiring quirks and corrosion, which I've fixed. Added electric grease to all the connections.
A fusible link can't cause a rich-run condition, can it? battery's been in/out IDK how many times. Re-wired the posts too. Worth my time to re-wire the c191? Another thing I was thinking was the three relays, main, 02, etc, they took a smack when the deer hit but I can't find any damage. Not quite sure how to multimeter those.
My electrical troubleshooting knowledge is limited. Any advice would be awesome.
Vacuum smoke test: good, no leaks
Timing belt, water pump: New, timing is spot on. Checked multiple times.
Coolant sensors: New
Crank sensor: tried others.
-as an aside, the current one on the car is the original, it's solid metal and seems to touch against the mounting bracket.
Airflow sensor: Swapped with known working ones out of three different 325i.
Spark: fat and blue. sparking on all cylinders. New plugs.
Distributor, wires: good. Swapped.
Plugs: ALL carbon fouled, very rich smelling exhaust
Check engine code: none.
Injectors: cleaned, swapped, seem to spray fine and not leak
Cat is clean, dropped exhaust. Swapped exhaust. 02 sensor is new.
Alternator and voltage regulator: good. Wiring: good. 13+v at battery.
Fuel pressure: good.
FPR: Good, swapped.
FPR vacuum: good.
CCV: Good.
ICV:swapped with known working. No luck.
Grounds: one frayed. Replaced, cleaned mounting points, beefed up ground wires. Hood ground is now gone.
Compression: about 10-20 psi low on all cylinders, leak-down test indicates worn piston rings, not blown head gasket. Head gasket was new before accident.
When the car is started, it fumbles all over itself, specific amounts of 'gas' (pedal push) will make it rev up for a minute or so, but it will not idle on it's own for more than a few seconds, sounds like a stroker off timing or a lawnmower lol.
If I disconnect the airflow sensor, I can drive it, kind of. Anything over half pedal-push will make the car cut out, but between 1/3 and 1/2 pedal push the car seems to behave. Doesn't sound like it's missing, there's just almost no acceleration to be had.
I'm running out of ideas over here. It has to be something electrical, and it has to have been damaged by the accident. The deer hit the front left side of the car pretty well, by the airflow sensor. I've checked through the wires looking for visible damage to no avail, found this and that for wiring quirks and corrosion, which I've fixed. Added electric grease to all the connections.
A fusible link can't cause a rich-run condition, can it? battery's been in/out IDK how many times. Re-wired the posts too. Worth my time to re-wire the c191? Another thing I was thinking was the three relays, main, 02, etc, they took a smack when the deer hit but I can't find any damage. Not quite sure how to multimeter those.
My electrical troubleshooting knowledge is limited. Any advice would be awesome.
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