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(Post Link) post #1 of 9 Old 20-09-10 Thread Starter
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156 after examiner test

oh my god at least 10 different faults all cleared except 1
there is a wirring fault somewhere in engine bay that all they would tell me, when they unpluged the right hand plug near cylinder head the radiator fan came on.
If anyone can shed some light on this i would be happy
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Originally Posted by alfa101 View Post
...when they unplugged the right hand plug near cylinder head the radiator fan came on.
If that was the coolant temperature sensor on the thermostat, that is exactly what should happen...!!
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(Post Link) post #3 of 9 Old 20-09-10 Thread Starter
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ok well they weere not expecting it thanks
is there any none problems with engine harness that what the examiner sayes??

JUst read your answer again
the plug they took off was the r/hand multi plug ( like a bigger version of a scart plug)

Last edited by alfa101; 20-09-10 at 17:06.
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The temp sensor is wired throught that plug its a jts?
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Sounds to me like they unplugged the ECU connector with power on (that's a NO-NO).

Was the plug one of a pair towards the center rear of the engine bay and right at the top?
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(Post Link) post #6 of 9 Old 21-09-10 Thread Starter
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yes it was.. whatever is wrong it brings on the engine warning light its a cf3 engine i think any ideas why??
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yeh my first impression was the same as Smaky's - sounds like they unplugged the big ECU connector on top of the throttle body. you should never ever do that with the battery connected really let alone running. they are the sort of connectors that unless you are having real problems you leave well alone.

I wouldnt bother to take your car back to that place, doesnt sound like they are alfa specialists or anything. the fault codes are usually pretty good at explaining what is wrong, so they've read the fault codes and not even told you what the code was, so they've not really done you any favours.

the CF3 engines seem to be a little more sensitive to me and put the engine management light on a lot easier than the older models. a friend of mine has a duff lambda sensor and keeps getting a warning light!

can you give us a better idea as to what symptoms the car is displaying, is it running rough, using more fuel, getting too hot etc etc....?

Previous Alfas:
1999 156 1.8TS Sport Pack 3
2001 166 3.0 V6 24V Super
2003 156 GTA 3.2 V6 24V
2005 156 1.9 JTDM-Jet Sport
2008 159 1.9 JTDM Lusso

Current Alfas:
1997 GTV 2.0TS Lusso
2001 147 1.6TS Lusso
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(Post Link) post #8 of 9 Old 21-09-10 Thread Starter
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the exanminer sayes abs to main frame wirring.
engine seams ok but a liitle flat between 2000 3000 after that will rev and pull fine
the fault meter reader comes up with 1226 and sayes air con pump wirring??
before this i have checke all earths and battery wirring no fuses have ever blown
it had new lamba sensors last mot and cat then emissions were fine!
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This connector block I am told (to the right on top of the ecu) can be a problem on the 156 esp the JTS. The engine motion gradually degrades the loom and copper wire, and will then give up all sorts of random codes. Got mine booked in due to low power, cutting out, and high idle. My codes are mainly throttle related though and one will not clear at all. Also,when I jigged it about, a big no no but ignorance is bliss, the engine cut out, and the low speed fan came on, and I haven't been able to get any low speed fan for 3 years!. A good specialist should be well able to fix it, they are certainly aware of it, and I've read on here that the dealers are aware too. May not match your problem exactly, but as I've found out, any pointer is worth considering in a case like this.
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