ac1867

iTrader: (4)

Right then.

I have changed my inlet manifold on my bug wrx to a spec c item. I have used the existing fuel rails and modified the brackets. I've refitted all plugs & pipework etc. All ok so far.

But, when firing up for the first time, it just won't idle, it's very lumpy and then just stops, with what sounds like a big puff of pressure being released from somewhere . If I un plug the maf it starts and idles at just over 2k revs with out any issues and turns off fine without ant odd noises. I have tried changing the maf for one I know works from a mares car but no difference

I'm really stumped on this so if anyone has any ideas I'd be grateful.

Thanks andy.

Turbotits

iTrader: (2)

I suggest you have an air leak somewhere and un metered air is being drawn in. Have you checked all the pipework on the new manifold are being used or blocked off if not

ac1867

iTrader: (4)

Yeah I am 90% sure that all holes are accounted for.

I guess I'm just going to have to take it all apart and go through it all with a fine toothed comb. :-(

Anyone know if the injectors can be held in too tight? Not letting fuel through at idle speeds? My modified brackets are a bit snug.

jura11

iTrader: (7)

Hi Andy

Do you have any CEL?

If yes your WRX inlet manifold has been with TGV and Spec C is TGVless,probably worth check with RomRaider for any CEL or any good OBD reader

Maybe can be this or something else


Jura

ac1867

iTrader: (4)

Hey jura, yes it does have CEL which was to be expected. Having emailed Simon he says it shouldn't have idling issues. So may be a missing vac pipe or electrical plug.

Will have to start taking it apart again to try and find it.

Cheers
Andy

jura11

iTrader: (7)

Andy I would check for unplugged vac pipe(which can be unplugged or you are just forgot to plug) as you are suggest

Those CEL can be for TGV

Jura