Fuel Problem - HAD ENOUGH! - HELP?

[int21h]

Ok, I've got a pretty much stock AUTO R32 GTS-T.

Only things that aren't stock:

17" Rims

Rear Wing

Side Skirts.

Since day 1, i have been getting around 20L/100km's.

I have had a new fuel pump and the old one replaced.

New timing belt.

Apparently its had a new cat, because that was changed when it was imported. (According to do the dealer)

So what do i do now?

I'm told the O2 sensor would not have an effect.

The AFM may need to be checked. If i need to replace it, how much(i've heard $350+) and is there an alternative?

PS. I have been driving the car OFF BOOST, like a grandmar and getting this fuel economy.

[meggala]

doesnt sound god I have an r32 and even when it was auto never got that bad fuel economy if its it o2 sensor a ford one will fit from an ed I think check my web site parts and info page.

that sounds like the culpit no other clues from me sorry

meggala

[Steve]

AFMs arent that expensive. IF you need to replace it. I would have a go at cleaning if first.

Couldnt hurt even if it isnt the problem, but it does sound O2 sensor more than afm.

Just get a can of carby cleaner (the type that doesnt leave a residue), costs less than $10. Then remove your afm and give it a quick squirt. I did mine after having only done about 50000kms, and at the time, before I cleaned it, it was filthy. Definately idled better after I cleaned it.

Second hand, I sold my AFM for $50, which is probably a bit on the cheap side, but you should be able to pick one up for $100 without too much difficulty.

[int21h]

Cheers for your replys guys!

Got back to the dealer, even though its out of warranty and hes going to replace the O2 sensor. If that fails, he'll replace the AFM and will also check out the CAT to make sure its not clogged up.

I'll let you know how i go!

[macka]

i would definately check o2 as this is the feedback fuel mix loop under 2000rpm in conjunction with the afm

Also if you are getting popping sounds from ur exhaust is it possible u have retarded timing therefore reducing the firing efficiency and using more fuel to cruise

[int21h]

Thanks macka!

Theres no popping sounds. But when the timing belt was first done, it was 2 teeth out on the exhaust cam. However that was rectified, so to the best of my knowledge the timing is ok.

Apart from the fuel problem. I have major problem with the wiring. I tried putting a new cd deck in. My car now unlocks the doors when you turn the engine off, and when you use the clicker to unlock the doors, it will unlock and then quickly lock again.

THis is a bitch! I have gone through all the wiring. None of the stereo wires are connected up . I have swapped all the relay's and immobiliser. But that made no different. So the relays and immobiliser is not faulty.

Which leads me to believe, some of the wires behind the headunit need to be connected and given power or earthed. BUT WHICH ONES? GRRR