what else would set these codes

[1iwilly]

what else would cause these code to be set from time to time.
po1345=cylinder-2 with fuel cut off
po1343=cylinder-1 with fuel cut off
po1347=cylinder-3 with fuel cut off

i change all 6 coils +6 new ngk plugs +fuel filter a week ago
truck has good pulling power starts right up

[tmv]

First of all, put your X5 info into your signature so we always know which version we're dealing with.
Since you replace the coils, plugs and fuel filter, I assume that you have vacuum leak in bank one. How's the VCG?
P.S: I know we're dealing with an I6 from your thread info.

[1iwilly]

thanks i've check for vac leaks none were found. VCG IS GOOD no oil leaks all bolts are tight i re check that already when i did the coils
vehicle is 2002 x5 3.0i

Originally Posted by tmv

First of all, put your X5 info into your signature so we always know which version we're dealing with.
Since you replace the coils, plugs and fuel filter, I assume that you have vacuum leak in bank one. How's the VCG?
P.S: I know we're dealing with an I6 from your thread info.

[bcredliner]

Assuming you cleared the codes, have they returned since you completed the work last week?

[upallnight]

Originally Posted by 1iwilly

what else would cause these code to be set from time to time.
po1345=cylinder-2 with fuel cut off
po1343=cylinder-1 with fuel cut off
po1347=cylinder-3 with fuel cut off

i change all 6 coils +6 new ngk plugs +fuel filter a week ago
truck has good pulling power starts right up

Those are codes for misfires with fuel cut off. I would check the compression on each cylinders. If someone have been driving with those codes it could be possible that the catalytic converter on bank 1 might have suffer some damage.

[1iwilly]

actually po430 bank-2 was there when i got the vehicle. took care of that
but misfire has to do with spark like when you have a bad coil arcing to the metal case at times. these are new oem coils.what i don't understand the fuel cut off part

Originally Posted by upallnight

Those are codes for misfires with fuel cut off. I would check the compression on each cylinders. If someone have been driving with those codes it could be possible that the catalytic converter on bank 1 might have suffer some damage.

[upallnight]

Originally Posted by 1iwilly

actually po430 bank-2 was there when i got the vehicle. took care of that
but misfire has to do with spark like when you have a bad coil arcing to the metal case at times. these are new oem coils.what i don't understand the fuel cut off part

When the computer determine that you have a misfire and even if it is undetectable to you the computer will shut down the injector(s) to prevent raw fuel from the cylinder(s) from being dumped into the catalytic converter. Once the injector(s) is turned off by the computer it become a very pronounce misfire since the cylinder is basically dead.

A low compression in a cylinder may cause the computer to think that you have a misfire since the power generated by that cylinder is not the same as the other cylinders.

Over time if the problem is not corrected the cats may be damage from the raw gas in the cats.