Is an 044 overkill?

[Chris_w]

im thinking of going for an 044 fuel pump for my ABY to try and cure some stuttering and the lean running it showed up previously on the dyno.

apart from a homefries, roose hoses and a bailey DV its a standard engine.
Would an 044 be too much for it, possibly causing it to go rich, or would the FPR & lambda compensate for this? Car is currently running a 4bar FPR.

the whole point of going for the 044 over a standard is that at somepoint in the future i wouldnt mind going 3071r or similar.

Cheers.

[Tonks4x4]

Get one.... It's done then fit and forget..... All ready for future upgrades.

[Error404]

I've got one in my CQ - thats overkill

but its reliable and future proof

[Rusty]

Sure get one but it sounds like you've got other issues there...

[Jamo]

Before you change the fuel pump, change the fuel filter if it's clogged it will cause you to go lean on a dyno

[Audi_CQ]

I've got 2 in my CQ just to be sure when running E85

You could also use a pump from a CIS model (KV, NG). Good for 500bhp on gas.

[Chris_w]

Before you change the fuel pump, change the fuel filter if it's clogged it will cause you to go lean on a dyno

already done. Would probably have been less awkward to change the pump though

[Chris_w]

Sure get one but it sounds like you've got other issues there...

Any ideas?

had a new fuel filter, fuel pressure is good, TPS reads 100% at WOT on vag-com, plugs are new bosch ones and all tight, roose hoses boost tested many times, brand new intercooler O-ring, MAF give 0.7volt output iirc.

havent checked the AFR since fitting a new lambda though, and at least one of the cats is rattling?

im running out of things to try, apart from trying out a standard ECU?

[Jamo]

Check the voltage to the pump, consider doing a relay connection to the pump.

Or just change it for a 044 like your title it's cheap enough and is a futureproof upgrade

[Rusty]

If your fuel pressure is good during a run then why do you want to change the pump? If you can check it over the full rev range then that'll tell you if it's a pressure problem and could save you some cash.

Sounds like looking at the cats might be a plan too, they have been known to disintegrate and block the exhaust.

In theory a leak on the inlet pipe before the turbo but after the MAF could cause jean running. Is the car running right? A mate had a hole in the inlet pipe and it caused a hiccup when coming on boost. A boost leak test will help here and is good for peace of mind.

[QuattroFever]

as above, cat sounds suspect, worth checking even if it doesnt solve ur problem, might be holding back power. Sticky injector?

[Chris_w]

thanks for the tips guys

cat bashing is my mission for next weekend, along with a fresh airfilter (cant hurt, and mines black!).

gonna run yet another boost leak check on it too

[europeanme]

I have been running a 044 for 18 months now on a standard car to begin with...but not now...it, ash as been mentioned, a replace and not have to worry if your going to upgrade and increase the hp....