bluejohndeere

evening all
still having problems with my car, when its cold it runs really healthy but when its warm it seems to run lean. it boosts well then just goes flat and sometimes it gives a mild cough. any ideas or thoughts??


i have put new coil packs, plugs and put the standard exhaust back on (helped a bit),cleaned maf and boost solenoid. only other mods are air filter and dump valve delete (makes no diffence having standard on).

Glowplug

iTrader: (8)

Fuel pump/pressure.

As a side, mine went a little to the lean side when i tried a DV delete.

bluejohndeere

excuse my ignorance but is the pressure adjustable ??

would a walbro help or would i just be throwing more money at the problem??

Glowplug

iTrader: (8)

It's not ignorance, it's a learning curve.

No they are not adjustable unless a aftermarket FPR is fitted.

IMHO, a Walbro is never a waste of money, and may well cure it.

bluejohndeere

thanks for the advice.

might also put a new fuel filter in there too.

willsy369

might not be related to your problem but my 98 V5 was running lean on initial take up then ran ok after, in the end the new MAF i had fited was faulty, was giving only 2-3% fuel instead of 25-30%, fitted the new green stripe one and sorted it out straight away, might be worth swapping if a mate has same model year just to completely eliminate it?

bluejohndeere

just been having a think, would a leak in the induction pipeing after the maf cause these symptoms ?

willsy369

i know that the induction kit was the cause of 2 mafs for me hence why my OE box is back in place!! oddly gave different symptons each time but always ended up the maf at fault- no probs since pipercross kit removed

willsy

Glowplug

iTrader: (8)

Yep, certainly would. As it would mean you are taking in unmetered air.

bluejohndeere

that will my first job in the morning then, will take all the pipes off, clean and inspect.