Hi guys, I know this is a bit of a long post, but im stuck in a bit of a dilemma right now. Ive posted about this problem before, but my situation makes things complicated.
Just to recap, my car's feeling very underpowered plus drinkin just a little too much and mis firing when at idle. Also, very rarely while driving, when i change gear then get back on the throttle, it starts jerking which is now much worse when it happens (although its still very rarely).
Here's the dilemma though. ive finally got the time to sort it out, but the diagnostic doesnt come cheap. BMW are asking £110 plus VAT, and a BMW/Merc specialist a friend recommended said it'll cost £45, but if they need to do a further test (cant remember what he called the two parts), it'll be £90. Now if i get the diagnostic done, ive got little money left to solve the problem. So im troubleshooting myself for now.
Ive put a seal around any faint cracks i could see in the intake boot, plus sprayed brake cleaner all around the intake area, to see if revs change. but no result. so im led to believe its not an air leak.
The idle isnt usually noticeably poor, but when I disconnected the MAF i did notice a slightly smooother idle for about a minute, but then the idle went noticeably rough, so i plugged that back in and the funny idle went away. So im guessing the MAF is ok (am i right in presuming this?).
Does anyone know where I could get a cheap diagnostic done around SW London (I live next to Wimbledon), or have any certain ideas of what to change without spending a fair bit of the little funds i have at the moment on a diagnostic? I know it's not wise to troubleshoot these things, but like i said. Unless I can get a cheap diagnostic, im stuffed on affording the actual part/s to change.
Any help much appreciated :thumbsup
Thanks,
Baz.
Just to recap, my car's feeling very underpowered plus drinkin just a little too much and mis firing when at idle. Also, very rarely while driving, when i change gear then get back on the throttle, it starts jerking which is now much worse when it happens (although its still very rarely).
Here's the dilemma though. ive finally got the time to sort it out, but the diagnostic doesnt come cheap. BMW are asking £110 plus VAT, and a BMW/Merc specialist a friend recommended said it'll cost £45, but if they need to do a further test (cant remember what he called the two parts), it'll be £90. Now if i get the diagnostic done, ive got little money left to solve the problem. So im troubleshooting myself for now.
Ive put a seal around any faint cracks i could see in the intake boot, plus sprayed brake cleaner all around the intake area, to see if revs change. but no result. so im led to believe its not an air leak.
The idle isnt usually noticeably poor, but when I disconnected the MAF i did notice a slightly smooother idle for about a minute, but then the idle went noticeably rough, so i plugged that back in and the funny idle went away. So im guessing the MAF is ok (am i right in presuming this?).
Does anyone know where I could get a cheap diagnostic done around SW London (I live next to Wimbledon), or have any certain ideas of what to change without spending a fair bit of the little funds i have at the moment on a diagnostic? I know it's not wise to troubleshoot these things, but like i said. Unless I can get a cheap diagnostic, im stuffed on affording the actual part/s to change.
Any help much appreciated :thumbsup
Thanks,
Baz.