ello
Right i'll start from when i first filled my car up.
When i picked my car up from the garage it was running on unleaded RON 95, so first time i filled it i put optimax in and about a week later the car was running very poorly so i took it to the garage and at first the mechnic didnt think there was anything wrong so i continued to use optimax but the car got progresivly worse, it was very sluggish below 4000rpm and then it would take off so i took it back to garage and this time he agreed that there was some thing wrong. To my knowledge they had cleaned the throttle bodies and replaced the MAF, anyway it was fixed. So i thought it was the MAF and the mechnic said the fact i changed to optimax was just a coincide. So i have been using optimax ever since with no probs until.
3 months later with MTM chip fitted i fill up with BP super unleaded RON 97 [couldnt find shell garage] and the same problem reappears and the whole rev range just feels really flat and the car just dosnt pick up. So i take it back to garage and the mechnic [same one] agrees its the same problem as before so he sticks it on his computer and there is a MAF fault code there, at this point he says that he looked at history and it appears that the MAF wasnt changed last time it was a throttle body, so he has replaced the MAF and there is no difference.
I didnt tell him about changing the type of fuel i had put in the car, i had forgot about it. But later thinking about it, it makes sence what ever the problem is, is getting triggered by changing the octane level of fuels i have used.
Has anyone got any ideas what could trigger a fault by useing different levels of octane fuel /ubbthreads/images/graemlins/confused.gif the fact they have a differnt burn rates seems like it is triggering something.
I'm taking the car back again monday.
Any ideas what it could be i'm thinking coilpacks
Right i'll start from when i first filled my car up.
When i picked my car up from the garage it was running on unleaded RON 95, so first time i filled it i put optimax in and about a week later the car was running very poorly so i took it to the garage and at first the mechnic didnt think there was anything wrong so i continued to use optimax but the car got progresivly worse, it was very sluggish below 4000rpm and then it would take off so i took it back to garage and this time he agreed that there was some thing wrong. To my knowledge they had cleaned the throttle bodies and replaced the MAF, anyway it was fixed. So i thought it was the MAF and the mechnic said the fact i changed to optimax was just a coincide. So i have been using optimax ever since with no probs until.
3 months later with MTM chip fitted i fill up with BP super unleaded RON 97 [couldnt find shell garage] and the same problem reappears and the whole rev range just feels really flat and the car just dosnt pick up. So i take it back to garage and the mechnic [same one] agrees its the same problem as before so he sticks it on his computer and there is a MAF fault code there, at this point he says that he looked at history and it appears that the MAF wasnt changed last time it was a throttle body, so he has replaced the MAF and there is no difference.
I didnt tell him about changing the type of fuel i had put in the car, i had forgot about it. But later thinking about it, it makes sence what ever the problem is, is getting triggered by changing the octane level of fuels i have used.
Has anyone got any ideas what could trigger a fault by useing different levels of octane fuel /ubbthreads/images/graemlins/confused.gif the fact they have a differnt burn rates seems like it is triggering something.
I'm taking the car back again monday.
Any ideas what it could be i'm thinking coilpacks