Big jolts

[stevieyid]

Right, after a while of no probs two come along at once. Firstly a slow puncture which i think i can just about deal with . Secondly im on my way to football this morning around 9.30am gave it a bit of stick to get round those sunday drivers and as the car picks up and reaching 3500rpm where it usually just takes off i get huge jolts and hesitation and no pick up at all. Well i nurse it to football and on the way home i thought i would open it up on the straight to see if it happens again and it didnt. Then i tried on the next straight from fourth, big jolts and hesiatation. Any ideas? shall i get the codes read? Could it be a boost leak or ignition problem or fuelling. Any help guys thanks!

[S2 Ant]

Sounds like boost leak from what you say about when the revs stop climbing.... Boost Protection mode

[stevieyid]

it only happens on WOT. It just seems to jolt u back and nothing happens. I got a set of bungs just got to work out how to use them

[S2_Dave]

I had exactly the same problem a month or so ago - only when I planted my heavy right foot to the floor. Not sure what it's correct name is, but it turned out to be the flexible concertina like hose before the intake pipe. Replaced the hose - no more limping around .

[stevieyid]

got a pic of this hose in the engine so i can check it out im useless and learning still. thanks for the help

[S2_Dave]

Anyone know how to resize images in Fireworks??

[S2_Dave]

Done. Now how do I insert an image?

[Bibby]

Attach files, option under the script box when you're in reply mode.

[S2_Dave]

Thanks. It should be attached. I hope.

Now replaced with a bit of Samco hose.

[stevieyid]

Right well after reaing the thread that Girl Racer done the other day which was very similar to mine i decided to check the pipe going into the intercooler which seemed fine and also the MAF. I take it the maf is the bosch unit attached to the air box is this correct. Anyway i cleaned the connecter going into the bosch unit with some cleaner and degreaser. I also removed the two fuses coupled together by the red clip with motor on it for two mins as Paul suggested in that thread. Took her out for a blast and the car was fantastic better than before i would say or that could be the very cold air out there. I think i will do a search and clen the MAF unit and see how it goes what do u think? Thanks for all the help guys

[Bibby]

Cleaning the MAF is usually a good point of call together with checking for boost leaks.

You can't miss the MAF. Follow the flow out of the airbox and it's the silver-coloured cylindrical metal object you first come to, with an electrical connection to it. Black plastic flat top where it plugs in.

[stevieyid]

When i remove the maf can u visibly see that it is dirty? Will the solution u put it in show all the dirt that has come off? just want to no if there will be an indication of how dirty the maf actually was. cheers

[Bibby]

The wire inside is really fine. What you will be able to notice is any dirt on the mesh screen that protects it.

I'd suggest a forum search on cleaning the MAF for details, as it's quite a sensitive bit of equipment.

[stevieyid]

Hi right got the maf out now just trying to get something to clean it with. Can u use meths? my mate seems to think that would be ok. the other alcohol stuff mentioned in other posts is apparently very hard to get hold of without the right documentation is this right? what else can i use. cheers

[GirlRacer]

Pulled plugs etc & sprayed my bits with Wynns electrical contact cleaner, seems fine now (touch wood)
i still dont really have a clue tho

Tina.