Diagnostic codes ml320

2SSB

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ml 320 1999
Just wondering if any one can help had my codes read and got the following
p0110 intake air tempreture sensor circuit malfunction
p0170 fuel trim malfunction bank 1
p0173 fuel trim malfunction bank 2
any ideas
 

Alex Crow

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yup, almost certainly air mass sensor. is it noticably slower than it once was? and the air temp sensor is built in with the maf sensor too, further confirms it.
 

television

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A Bosch service center is the cheapest place to buy one
 
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2SSB

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yup, almost certainly air mass sensor. Is it noticably slower than it once was? And the air temp sensor is built in with the maf sensor too, further confirms it.

not slower it wont start at all so trying to find out will this solve the problem if i replace it
 
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andy@pcd-ltd

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Does it just keep cranking over or does it fire up and then cut out again
 
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2SSB

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No just cranks over you can see the progress on my other thread crankshaft sensor by 2ssb
 

Alex Crow

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Still say you have a wiring rub through!!

worth lifting the n/s rear seat and carpet and removing the round cover to access the pump - test here for power and if there is power here order a new pump, if not sam gets another star :cool:
 

Cole@MBS

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worth lifting the n/s rear seat and carpet and removing the round cover to access the pump - test here for power and if there is power here order a new pump, if not sam gets another star :cool:

Waiting for that star Andy!!!
 
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2SSB

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power to pump

Still say you have a wiring rub through!!

hi there now have power to pump but have 11.97 volts with ignition off and 11.97 volts when on is there any way to check pump when out by connecting power to it
cheers rick
 

Alex Crow

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12v ignition off? post a photo of the wires, the pump does not have power with the ignition off.

you ARE testing between the + and - wires to the pump aren't you? not just between the + and earth.........
 
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2SSB

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re wires

was testing between wires and earth on body need to check between + - do i
 


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