Alfa 156 2.0TS - Down on Power

[Cyclone1]

[redacted]

[Twin Turbo]

Blimey, the power only comes in at 3500rpm.....I'm amazed the thing gathers momentum at all.

Sorry, can't be of much more help that that. I'd probably want an Alfa specialist (not necessarily a dealer) to confirm the problem before shelling out on any exhaust bits and pieces.

[Cyclone1]

Thanks for the reply.

I did a bit more fault finding yesterday and think that it may be the MAF sensor. I know that on my old Audi S4 that when the MAF was faulty the ECU would go into safe mode and this appears to be similar with the Alfa. I have unplugged the MAF and the car runs as normal, eg there is no drop in power at 3500 rpm. Therefore I will order a new one. Does anybody know if you can run the car without the MAF? Or is best to leave the faulty MAF in place and keep the car running with low power until the replacement arrives?

[Cyclone1]

Thanks for the reply.

I did a bit more fault finding yesterday and think that it may be the MAF sensor. I know that on my old Audi S4 that when the MAF was faulty the ECU would go into safe mode and this appears to be similar with the Alfa. I have unplugged the MAF and the car runs as normal, eg there is no drop in power at 3500 rpm. Therefore I will order a new one. Does anybody know if you can run the car without the MAF? Or is best to leave the faulty MAF in place and keep the car running with low power until the replacement arrives?

[wombat rick]

You can run with the MAF unplugged and it should run the engine at a default safe setting. A failed MAF feels exactly like you have described - blocked catalyst/banana up the tail pipe etc...

The MAF is a Bosch part so you don't need to go to Alfa for it. They are about £140 ish...


>> Edited by Wombat Rick on Monday 9th May 18:46

[pdV6]

wombat rick said:

MAF stuff

Seconded...

One of the major culprits in the "dodgy Italian reliabilty" myths these days is (wait for it) a German part.

Oh the irony.

[Avocet]

What's a "MAF" ???

[pdV6]

MAF = Mass Air Flow sensor

aka AFM (Air Flow Meter)

aka MAFM (Mass Air Flow Meter)

[Mon Ami Mate]

Avocet said:

What's a "MAF" ???

My Alfa's Fd

Mafia Assembled Farce

Maurizio's Apathetic Friday

Manfred's Abject Fabrication

[wombat rick]

Avocet said:

What's a "MAF" ???

It tells the ECU how much air is coming in and then the ECU sets the fuel accordingly.

Bring back twin carbs!!

[Avocet]

Ta!