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Old 01-11-2015, 09:16 AM   #1
Registered User
Join Date: May 2014
Location: UAE
Posts: 29
My Ride: e46 325i
P-1343 Misfire with fuel cut-off e46, 325i

Dear Fanatics

2001, 325i giving me problems big time.

- INPA says

29 Ignition Zyl. 1
Err. Freq 2
Log Count 40
Spa to small

238 Burning Fail Cylinder 1
Err. Freq 1
Log Count 40
Misfire CARB_A

- New Spark plugs for Cylinder 1

- New Ignition Coil
- New boot for Cylinder 1
- Swapped the coils from other cylinders to coil 1..
- Swapped the spark plugs from other cylinders to cylinder 1 --------- No Use and misfire in Cylinder 1 continues
- New CCV/PCV valve. (OEM) --- Expensive
- New O ring for dip stick.
- New o rings for fuel injectors after servicing injectors.
- New fuel filter (OEM)---- Expensive
- New Fuel Pump with level sensor (OEM)---- Extremely Expensive.
- Smoke test done and no leaks found.

Misfire and horrible shaky drive with problems in cylinder 1 continues and nothing helps.. Error will not shift to any cylinder no matter what you do.

Bought specialized code reader and it says P-1343 (P-1343 Misfire with fuel cut-off) is the error...

What else shall I buy to feed this monster.. Valve cover gasket or what else. Please give me ideas. I am not ready to spend a penny on this without knowing if it will work.

Please help me to diagnose and cure the problem. Suggestions required.

farazafzal is offline   Reply With Quote
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Old 01-11-2015, 09:24 AM   #2
Registered User
Join Date: Sep 2010
Location: NH
Posts: 113
My Ride: 2004 330Ci Vert
Compression test. Don't buy anything else before checking compression.
JimC-NH is offline   Reply With Quote

misfire, p1343

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