156 1.8 TS - Severe Power Loss / Flat-Spots
Recently I suffered a Cambelt failure and after some expensive (could have been a lot worse) repairs and a full service later, there is a massive power loss and very severe flat spots. I need 3K revs to pull away otherwise it bogs down, and the same on changing up or down gears, without 3K revs, then it bogs down again (dangerous when pulling out or going round RA's)....on straight roads accelerating up through the gears, its flat again til about 3K, then its like a turbo kicking in, until about 4-4.5K Revs- then the power drains away and feels like its slowing down again.
I had a similar problem on a company pool car a few years ago. The cat collapsed. Could it be the same thing? (It was a Vectra!!! dare I say I drove one)
The dealer reckons it might be the CAT, or the Fuel injectors and/or fuel pump are knackered. However, prior to the Cambelt failure I had no performance degredation at all.
Although, at the service a performance induction kit was put on as well (new plugs, and usual full service items at the 60K mark). Could it be the non-standard induction kit (ie the airflow meter not coping with such increased airflow perhaps and not sending enough fuel in??), or could there be unoticed damage from the CAMbelt failure that hasnt been picked up? Or is it the CAT?