filipharvey

I'm not sure I get what you mean? The MAF code resets but comes up again whenever the car is started. Thing is though, 2 days prior to this the only code I had was for one of the rear lambdas, and that was a high signal which I expect to see occasionally as the rear cats have been removed. As it stands, since I reset the codes after the initial power loss, all power has returned, but I now have a wandering idle when moving with a warm engine, but fine when stopped or cold. Where are the two front lambdas connected, as they are the two codes that will not reset at all. I suspect a common connector between the two may be the cause. Looking at the ECU pin out, the MAF is on the opposing connector to the Lambdas. If I disconnect the plug on the MAF, nothing changes other than I get an additional code relating to the intake air temperature, so at least some of the wiring to the MAF must be ok.

Too far for me unfortunately. Do you think its something I could trace with the help of FES? Doesn't matter what I try, the 2 stubborn codes won't clear and the others come back as soon as the engine is revved.

Tried that last night and I'm still having the same issues

Funny you should say that, but the negative terminal is ever so slightly loose. It does seem to make a good connection although you can move it by hand.

Lovely. I'll be patient

Now then, where is the oracle???

And that's why I'm here!

156 with a 3.0 V6 running on an ME3.1 ECU, by the way.

After a strange loss of power on Saturday, I've had a load of codes come up related to MAF, Lambda and EVAP control sensors. To me this is too much of a coincidence for all of them to fail at once so I'm going down the lines of wiring loom. I have disconnected the connector block on the NSF chassis leg which appears to be connected to all of these, and it only brought up on extra fault of the fan circuit - which I expected. Disconnecting this block makes no difference to the running of the engine. It was fairly corroded on a few of the pins which I have now cleaned up. The faults however are still showing. Is there anywhere else, other than at the ECU where these items are connected?In case it helps, the fault codes are as follows: P0100 - Mass Air Flow (1) - Signal Low P0443 - EVAP Circuit (4) - Signal Low P0135 - Preheating resistance 1 above catalyst - Signal Low P0155 - Preheating resistance 2 above catalyst - Signal Low P1135 - Preheating resistance 1 above catalyst - Invalid Signal P1155 - Preheating resistance 2 above catalyst - Invalid Signal All 4 lambda signals are showing a solid 437mV, whilst the MAF shows 0.000V There have also been errors relating to the throttle position, although these haven't returned since the problem first arose on Saturday. Prior to that, all lambdas were switching correctly, albeit one of the post cat lambdas at a slightly higher voltage. The MAF has always shown correct values too. Having not had the engine fitted for long, I do check these things regularly to make sure everything is ok. Any chance it could be an earth fault to the ECU? Is it just earthed by its connection to the plenum? Or would an ECU earth fault mean that the car wouldn't run at all. It may be worth pointing out that the P0135 and P0155 codes will not clear at all, even with the engine off.

I've done all the work myself. I'll get pics on here once I've got it back on the road.

Well the engine has only just been put in, so that part is practically spanking! But yeh, I spose £2k is fairly good.

Not really sure, Sphinx. I've already been offered £2k, but I'd like to think it is worth a little more.

Nearly there now, just got to get the gearbox off again cos the clutch forks separated from the thrust bearing, but it shouldn't be long until it's on the road. Thing is, I really want to get a Beemer 840Ci within the next 18 months, so what do you reckon my 156 will be worth and would anybody be interested in it? (2000 X, Nero Fuoco with Tan Leather, 130,000 miles)

I got here last night, but forgot to do a 'Hello' post! I'm filipharvey and I'm an Alfaholic..... Oh no, that's the other other site!

Ello boss!

So who is going to be the first to sign up with a different username to that of AO???

Well lookey here!