156 v6 MAF SUPRISE (PLEASE READ) - Page 6 - Alfa Romeo Forum
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I think my brains melting!!! Which MAF do I buy to get the F00CG2044 sensor cheapest-and can I use the 030 sensor instead?

Thanks,

Neil
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Originally Posted by Kurt View Post
I think my brains melting!!! Which MAF do I buy to get the F00CG2044 sensor cheapest-and can I use the 030 sensor instead?

Thanks,

Neil
044 is a CF3 sensor element. You can't use an 030 sensor.
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Thanks. Mine's a CF3-plastic top, 2 Lambda sensors in the downpipes/precats...right? Anyone know the cheapest way to get the 044 sensor then? I'm sure mines toast, as well as the bad running, using FiatECUscan in real time while driving, the air temp is showing as 30*C plus even though it was about 9*C

Thanks again

Neil
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Air inlet temp sensor is part of the MAF in CF2 and CF3 cars. So it could well be knackered giving readings like that.

Give Laurence a call tomorrow for a good 2nd hand MAF - ask for one with part number ending 309 as thats the usual CF3 number on the housing. 01582 869 560
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Air inlet temp sensor is part of the MAF in CF2 and CF3 cars. So it could well be knackered giving readings like that.

Give Laurence a call tomorrow for a good 2nd hand MAF - ask for one with part number ending 309 as thats the usual CF3 number on the housing. 01582 869 560
Thanks I'l do that. strangely the fault light and MCSV warning hasn't come up since I put it out, but the car still runs really bad. When the light was on I got P0150 and P0130 codes, both relating to Lambda sensors, but when driving the voltages in real time were between 0.5 and 0.8mv every time I glanced at the screen. No mention of the MAF...gotta love Alfas I guess!!!
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Sounds like the MAF is reading wrong, but its readings are still plausible. So the engine fuels for the air it thinks it is getting, a/f mix is wrong and the lambda is picking it up. Or you could have a lambda problem but its more likely to be air mass meter. When was your air filter last changed, and is the airbox in good condition? Leaks between the MAF and air filter can quickly kill the MAF..
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I found that the clamp securing themain pipe running from the airbox to the MAF had come loose at the airbox end. My theory is that dirty air got to the MAF which screwed the fuelling, even though I wasn't getting a MAF error code. This in turn knocked out no 2 pre cat Lambda-which was running at 1.5 to 3 volts in real time under driving conditions. Having replaced the MAF and run the engine the no 2 Lambda was showing at 4.9v and not moving, so I replaced that too. On restart, the car idles fine. Drove about 40 miles and everything seemed fine, then the dreaded MCSF light came on again BUT the car drove fine still. That was last night. This morning I read the codes and got...

P0130 O2 Signal 1 pre cat invalid signal
P0100 Air Flow Meter Signal High!!!!!!! (new MAF)
P1178 Mixture 2 Strength Signal low (multiplicative)

As I say, the car drove fine and the computer was back to showing 30mpg on my commuting run (not accurate I know but referenced against previous readings) so I put the light out and have had no re-occurrence so far

In real time all the lambdas are showing 0.466v without the engine running and up to about 0.8v or so when driving.

I know I committed the cardinal sin of buying a pattern MAF but I really needed the car back on the road quick. It's got a years warranty so presumably it should last more than 24 hours!!!!

I'll update when the light comes back on but at least she's driving well now, touch wood, and I've achieved what the 'specialist' couldn't

Thanks for all your help everyone

All the best

Neil
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oops sorry, I hijacked this thread. I thought I was posting in my own thread.

Anyway the light came back on, did an ecu reset with FiatECUscan and all seems good so far.

Thanks again everyone

Neil
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sorry to open this again, does anyone have the info to hand for a 2000 1.6 156 1 cat and lambda as i need a new MAF
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In doing a bit of searching - found this link on a fiat forum...

MAF meter, sensing insert | Meat and Doria
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Hello all!

I wanted to drop a quick Thank You to the guys who started this thread and also started the other one regarding the MAF Database. Suffice to say that I proceeded along the lines of their recommendation and managed to save a good bit of cash!

I have a 3.2 GT and had the MCSF error AND the fuel gauge showing empty symptoms, so hooked up my copy of FiatECUScan to find out that I had a MAF problem. Taking the tamper-proof torx bits (recommended on this thread) and extracting the sensor I managed to get the part number of the sensor itself. I then phoned Worldcarparts.co.uk (recommended on this thread - there's a pattern here!) before ordering a replacement part from them.

Fitted it all up last weekend and hey presto, all fixed! Also, at a price of 89 vs 250!!! (and that's just the saving on parts)!

So, bingo! Thanks a lot guys! You've not only saved me some big money on parts but also on labour too.

Many thanks - R
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F00C2g2030 is also suitable for cf3 2,5.

Last edited by jarama; 28-06-13 at 12:22.
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Garage
CF1 MAF alfa romeo 155 2L 16v

CF1 MAF alfa romeo 155 2L 16v

body 0280217111
sensor 570 09 1A

does anyone know of a replacement??? i'm desperate!
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I'll add my two penneth to this thread.

Had my 156 2.4 JTD 10v 150hp for about a month. I knew it had an issue with severe turbo lag and not pulling away after hard driving. No apparent engine light, but with OBD scanner showed air intake temp sensor and MAF problem.

sensor is F00C 2G2 044 in housing 0280 002 309.

I tried a replacement housing ending 019, which had sensor ending 030, but it has a flat spot at around 3000rpm, so maybe it's knackered too. Some suggest that sensor ending 033 030 and 044 are all compatible, but I'm not so sure.

I've bought another used 044 today and still have the turbo lag issue, but no error codes, so I'm absolutely stumped now.

got the used 044 from a 1.6 Twin spark on an 02 plate. same housing as my 2.4 JTD

So, to be clear. 2.4 JTD 150hp 10v BOSCH housing 0280 002 309 - SENSOR BOSCH/F00C 2G2 044

Same housing and sensor on 1.6 Twin spark
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Try taking MAP sensor out of the back of the inlet manifold and making sure its not gunked up. Also check for air leaks between the air mass meter and the engine, there are a couple of rubber connectors, a hard plastic 180 degree pipe, then a convoluted pipe that goes into the turbo. After the turbo you have lower boost hose, then the intercooler (could be split) and then the upper boost hose. If any of these are split it will cause issues.

Also check the metal pipe from the exhaust manifold to the EGR cooler and from the EGR cooler to the EGR valve. Although if there was a split here you'd get smoke in the engine bay.

Is your EGR valve plugged in & working?

Autolusso Penrith - UK's leading independent Alfa Romeo specialist with branches in Bedfordshire, Cumbria & Dorset

Wizard Exhaust systems available here

Tel: 01768 879 171
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Pud, i took the MAP out about 3 weeks ago and gave it a clean with degunk and brake cleaner. Though maybe it's kaput too? after all the car has 134,000 miles on it and no evidence of them being replaced.

I think the telling point is i didn't experience any lag issue using the 030 sensor, but i have with both 044 sensors.

This has me very puzzled.
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sorry, EGR is plugged in and has apparently been cleaned out by my mechanic friend from whom I bought the car.

However, macbeast has very clearly suggested i blank it off totally so I'm going to see about getting that sorted tomorrow. the 150 10v JTd won't throw a hissy fit I'm told.

Last edited by AlRome; 07-10-14 at 19:23. Reason: typos
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A thank-you from me too for this thread.
My '98 156 V6 coughed and switched on the injector light. It then idled woo ooo woo ooo like (!) and hesitated on pressing the throttle. I pulled to lambda off, was told not to be so silly by a mate so I put it back on and took the maf off instead.
The code on the maf insert was F00C 2G2 030. Using the info on the first page of this thread, I found the cheapest equivalent was 0280 218 019 from Carparts4less at 77.99. It was advertised for a 156 2.0. (They also sell just the insert at 99).
The part came today, and I held my breath while I took the insert out. Hooray, same code! Fitted it to my maf housing.
Fitted it to the car with a new air filter.
The injector light has gone off, the car goes and idles so much better. It's slightly hesitant in the mid-range, but this will probably go as the car learns the new part.
I saved at least 40. Cheers
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