Hello all you fine Volvo Afficionados. After quite the sparepart extravaganza on my 1998 V40 T4, im left with a issue regarding the Fuel Injectors and FPR. First things first. How does one determine the right Fuel Injector?? Meaning that I have searched the original Siemens (the grey top ones) for m...

Update: Got the walbro fuelpump (should have checked up better before buying), and the FPR. Took out older (still brand new) fuelpump, and load and behold, the tubing + pump was totally dead. The tube had split lenghtwise all the way :-[ Didnt check this first, as the pump was brand new. Got the Wal...

Maybe a fuel pressure regulator issue ??

Hello there. Check the fuelpump (a guide can be found here) , if it fails, it has similar symptoms. Otherwise check your Fuel Regulator .

:-] Just ordered the walbro pump upgrade, and a brand new fuel pressure regulator (what a pricetag for this little fellow)
Hopefully this will make my Volvo drivable once again. As of now, its a quite expensive peace of metal, just standing there.

UPDATE : No luck yet, getting the car started. Changed out a lotta items, but to no avail. Car vouldnt rev up. So i went through the trouble, of rechecking EVERYTHING again. Checked every single vacuum hose. Checked all gaskets, checked all fluids, checked turbo and so on. Finally I decided to check...

Once again, thanx for replying :-] Think i forgot to mention, that upon inspection, the HT cable for cylinder 1, wasent touching the spark plug. So it might have been running without a spark on cylinder one (for god knows how long). Couldnt this put a lotta unburnt gasoline through the cat, and even...

Could a failing / meltet cat, cause the engine, to eventually drown in its own gases?? I mean, if the cat is totally melted down, the system wouldnt be able to breathe properly (getting the exhaust gases out of the way) , and cause the total stall on my engine ??

Thanx a million for your reply. Makes sense, that a failing O2sensor would "drown" the engine, thus putting too much fuel into chambers, and giving med the smell of unburnt gases.
Is there any way to check if cat is failing??

The Volvo V40 voes. My first post, but been lurking for a while, sucking all that invaluable information, from you fine gentlemen :-] Im from Denmark, so English is not my native tounge, so please bear with me . Bought a 1998 Volvo V40 T4 (phase 1) with manual gearbox, this may. It drove perfectly a...