Heres specs on the setup
89 325i
Obd1 m52
m50 intake
trm tune chip
413 red label ecu
Starting this winter, my car started having power issues and on seemingly random occasions, the car would lose all power while driving and would buck back and forth for a few moments before it would return power back. (very sketchy if you ask me)
Here's what i've done so far:
-Cleaned icv
-Inspected/replaced intake hoses to and from icv
-Cleaned tb
-New spark plugs
-New fuel pump (inside of fuel tank looked spotless, no signs of rust)
-Cleaned/replaced maf with known working part
-New, dry cone air filter
-New tps (tested resistance to confirm part is good)
-New fuel filter
-Lucas injector cleaner when filling up car
-New cam position sensor
-New coolant temp sensor (tested resistance to confirm part is good)
-Cleaned engine main ground
-Replaced cpu
-New fuel pump relay
-New main relay
-Refurbished injectors
-New fpr and vacuum hose from fpr to manifold
-New tb gasket
-Tried another icv, no change
-Inspected coils/coil boots/plugs, nothing out of the ordinary
-Swapped coils for different set
-New coil boots
-Vacuum gauge test to confirm no exhaust restriction
I'm starting to run out of ideas. The car idles smoothly (although I have noticed once the car warms up it does idle a little high, around 1k rpm) but the car is definitely low on power compared to before. It feels like it has flat spots in the acceleration and then occasionally will fall on its face and start that bucking symptom.
Has anyone run into this issue before?
89 325i
Obd1 m52
m50 intake
trm tune chip
413 red label ecu
Starting this winter, my car started having power issues and on seemingly random occasions, the car would lose all power while driving and would buck back and forth for a few moments before it would return power back. (very sketchy if you ask me)
Here's what i've done so far:
-Cleaned icv
-Inspected/replaced intake hoses to and from icv
-Cleaned tb
-New spark plugs
-New fuel pump (inside of fuel tank looked spotless, no signs of rust)
-Cleaned/replaced maf with known working part
-New, dry cone air filter
-New tps (tested resistance to confirm part is good)
-New fuel filter
-Lucas injector cleaner when filling up car
-New cam position sensor
-New coolant temp sensor (tested resistance to confirm part is good)
-Cleaned engine main ground
-Replaced cpu
-New fuel pump relay
-New main relay
-Refurbished injectors
-New fpr and vacuum hose from fpr to manifold
-New tb gasket
-Tried another icv, no change
-Inspected coils/coil boots/plugs, nothing out of the ordinary
-Swapped coils for different set
-New coil boots
-Vacuum gauge test to confirm no exhaust restriction
I'm starting to run out of ideas. The car idles smoothly (although I have noticed once the car warms up it does idle a little high, around 1k rpm) but the car is definitely low on power compared to before. It feels like it has flat spots in the acceleration and then occasionally will fall on its face and start that bucking symptom.
Has anyone run into this issue before?
Comment