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Engine management code P1444


mike.gamble
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To add to the Lupos current woes, I’ve had the engine management light on since I got it.

I thought it was the EGR valve but took that off, deep cleaned it, refitted and got a friend to clear.

It came back almost straight away.

Potentiometer for EGR, implausible signal.

 

Any ideas?

 

 

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Does that model have EGR feedback? So the ECU knows how open the egr valve is? Usually a fault like that means the valve activation coil is shorted out or open circuit. Oh, hang on, you're using a different diagnostic setup- might just be the label file from a different model car is being used.... yeah, check the connections to the coils

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I've checked all the connections to the coils and replaced the HT leads and no joy.

However,  what I have noticed is that the fuel economy is terrible. I'm getting less than 200 miles from a tank. I hadn't noticed it previously as it's not my only vehicle and I never set the trip meter but, I became a bit suspicious last week and decided to fill her up and do the trip meter.

Is this likely to be linked?

I've done a bit of reading online and I've read all sorts of possible faults from bad connections in the rear light units to blocked pipes but, I can't find a thread where someone has finished the topic by saying it's working, and this is what I did!

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Yeah, what Rich says... you can check all the temp probes first thing before starting up using your diagnostics. They should be all giving about the same (6-7c right now). Then do the same after the end of a run and see what measurements you get. The coolent sensor actually has two sensors in, one runs the dash, the other feeds the ECU.

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