hi all, looking for a good link for the QR20DE engine for timing chain replacement etc, or what have you experienced. Car stalled outside house, quick read and code 335 for cranksensor, so took the cheap route - replaced the sensor, 3weeks on and all is good, then ups she pops, doesnt want to start, manges to start after many cranking goes, had the engine light read again,  p0335 is back, so looks like a chain replacement at 97k. I have found the same engine is also fitted in the PRIME