Au2ro
Member
The car has had limp mode issues after aggressive acceleration for some time now with no warning lights coming on when this happened. I increasingly could not "aggressively accelerate" and this was getting worse over the past few weeks ending up being abysmal. The mechanic at the garage doing a service and MOT found that there was a leak in the intercooler so I went for a new ProAlloy intercooler thanks to @timmus
Well, after installing a new ProAlloy intercooler which has greatly improved the acceleration on the car, I still have the underlying issue.
The issue is only apparent on aggressive acceleration. For example this morning I was coming onto the motorway on a slip road up an incline with a truck in front of me and another car behind me. I pulled on to the motorway behind the truck and the car behind me moved onto the right hand lane but waited for me to pull out too. I pulled out and accelerated successfully and got to 70mph but then the power dropped, I managed to keep to 70mph which I would not have been able to do before fitting the intercooler, but there was no more power to accelerate any further. Previously I would have waited behind the truck as I know that I would have had insufficient acceleration not to annoy the drivers behind me while trying to pass the truck.
When this happens I have to pull over and stop and restart the car before the full acceleration is available again.
I don’t think that there are any leaks in the associated pipework and the mechanic who fitted the intercooler said that he had inspected for that and if there were I suspect that I would not now have better performance on normal acceleration than I ever remember having before fitting the new intercooler?
The MAP sensor was not replaced and the old one was fitted to the new intercooler.
Could it be a wastegate issue causing to high boost pressure?
However, the issue was still apparent with the leaky intercooler, although more difficult to achieve with such poor acceleration.
Anyway, I now want to know what to check next. Any suggestions would be greatly appreciated.
Well, after installing a new ProAlloy intercooler which has greatly improved the acceleration on the car, I still have the underlying issue.
The issue is only apparent on aggressive acceleration. For example this morning I was coming onto the motorway on a slip road up an incline with a truck in front of me and another car behind me. I pulled on to the motorway behind the truck and the car behind me moved onto the right hand lane but waited for me to pull out too. I pulled out and accelerated successfully and got to 70mph but then the power dropped, I managed to keep to 70mph which I would not have been able to do before fitting the intercooler, but there was no more power to accelerate any further. Previously I would have waited behind the truck as I know that I would have had insufficient acceleration not to annoy the drivers behind me while trying to pass the truck.
When this happens I have to pull over and stop and restart the car before the full acceleration is available again.
I don’t think that there are any leaks in the associated pipework and the mechanic who fitted the intercooler said that he had inspected for that and if there were I suspect that I would not now have better performance on normal acceleration than I ever remember having before fitting the new intercooler?
The MAP sensor was not replaced and the old one was fitted to the new intercooler.
Could it be a wastegate issue causing to high boost pressure?
However, the issue was still apparent with the leaky intercooler, although more difficult to achieve with such poor acceleration.
Anyway, I now want to know what to check next. Any suggestions would be greatly appreciated.
