4.6L LH2 Engine Miss on One Bank with DTC P0300 No Cam Phaser DTC - kw camshaft code ECM

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

2004 XLR and SRX 4.6L (LH2) engine miss on one bank and multiple cylinders with a DTC P0300 and no cam phaser DTC.

If the engine RPMs are raised over 1500 and the engine miss seems to go away, this could indicate a cam phaser concern. Be sure to check if the Tech 2 has been updated with the new software version 24.001 as an older software version of Tech 2 will not indicate camshaft phaser codes.

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(04 Cadillac XLR) and (04 Cadillac SRX)

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