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mike switzer
mike switzer,
Category: BMW
Satisfied Customers: 649
Experience:  lead diagnostic tech at Aamco
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I have a 2006 BMW X5 with a 3.0L engine. Had a misfire on

Customer Question

I have a 2006 BMW X5 with a 3.0L engine. Had a misfire on #5. Replaced the coil, fuel injector and spark plug. Compression is 120. When I clear the codes it runs fine until I get it up to 4000 rpm, then it starts skipping again and immediatley sets a cyl 5 misfire code.
Submitted: 1 year ago.
Category: BMW
Expert:  Steve replied 1 year ago.
Hello and welcome,
My name is ***** ***** it will be my pleasure to assist you today.
What is compression in other cylinders?
Customer: replied 1 year ago.
They are all 120 + or - 5
Customer: replied 1 year ago.
Mileage is 143k
Expert:  Chad Farhat replied 1 year ago.
Hi, my name is ***** ***** Have you replaced the coil with a new one or you swapped from another cylinder?
Customer: replied 1 year ago.
I have done both.
Expert:  Chad Farhat replied 1 year ago.
do u have a scanner where you can read fuel trims ?
Expert:  Chad Farhat replied 1 year ago.
Is this the only code in the engine control module ? Coil, Injector & coil & plugs all that is great we need to know now if we have an exhaust manifold leak on #5 ,looking at fuel trims will tells us how much the Ecm is adjusting the A/F ratio .
Expert:  Chad Farhat replied 1 year ago.
Also if u do have a scanner , I like to see the MAF sensor value at the moment you giving a kickdown and the trans shifting to a higher gear that should give max value for MAF sensor .It takes 2 people one driving one looking at data, or u can record the event while you driving if the scanner has that capability.?
Expert:  mike switzer replied 1 year ago.
hello my name is ***** ***** you still need help with this?