FiatECUscan, service light, cylinder correction - Alfa Romeo Forum
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(Post Link) post #1 of 5 Old 11-03-11 Thread Starter
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FiatECUscan, service light, cylinder correction

Hi all,
Just purchased a full version and an ELM327 lead from Ebay and so far I am very impressed. The main reason for the purchase was to reset the service indicator on my 147 1.6TS and 159 1.9JTDm

After resetting the 159 I decided to have a little play and have noticed that my cylinder correction values are all over the place.

Cylinder 1 average = -0.231
Cylinder 2 average = +1.450
Cylinder 3 average = -0.918
Cylinder 4 average = -0.289

From what I've found a reading between -0.9 and +0.9 is acceptable, so I am now looking at finding the cause of cylinder 2 and 3's readings. I'll take some readings tomorrow, but will hopefully get to play with the software in full one day....wife permitting.

Any hints and tips gratefully received.

Cheers
Dave C
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It was +-0.9, but that is ture only for older JTD 16V engines (140BHP), newer JTDm engines have max allowed corrections of +-0.5...

You should get that checked/cleaned, just to be sure...
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Has the injector ever been changed before?
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(Post Link) post #4 of 5 Old 12-03-11 Thread Starter
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No the injectors haven't been changed, I'm going to confirm that the ECU has the correct code for the injectors. I'm also looking into replacing the injector nozzles (0443 171 838 / DLLA 148P 1347), but not having much fun finding them. I have read an article where a guy strips a Bosch injector down, cleans using an ultrasonic bath and reassemblies with good results.....but not sure I want to go down that route.
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Quote:
Originally Posted by Davey_saxo View Post
No the injectors haven't been changed, I'm going to confirm that the ECU has the correct code for the injectors. I'm also looking into replacing the injector nozzles (0443 171 838 / DLLA 148P 1347), but not having much fun finding them. I have read an article where a guy strips a Bosch injector down, cleans using an ultrasonic bath and reassemblies with good results.....but not sure I want to go down that route.
There are companies out thee that will clean then for you for abour £10 an injector...
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