Intermittent poor engine running when coming off idle at light throttle.
Engine seemed to jerk or feel flat and may even misfire.

Customer advised that previous repairs to fix this issue included:
- Replacement of the CRK and MAF sensors
- Injector and carbon cleaner additives.

Initially unable to reproduce these symptoms, so based diagnosis on customer description.

Further discussion with the customer established that they only use 98 Octane ULP.
Customer did request that the injectors be removed and cleaned.

Ended up finding a poorly secured MAF sensor was the cause.