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Greg
Greg, Shop Owner
Category: UK Car
Satisfied Customers: 6808
Experience:  17 years Shop Owner /Technician. 27 years experience,
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My 2005 crv hunts on idle and has a very lumpy tick over and

Customer Question

My 2005 crv hunts on idle and has a very lumpy tick over and comes up with p0172 bank1 rich on occasions
Submitted: 1 year ago.
Category: UK Car
Expert:  Greg replied 1 year ago.
Name is***** goal is to provide you with excellent service – if you feel you have gotten anything less, please reply back,
This is a lean condition which could be a number of things .
But your problem tells me a possible fuel restriction ,bad fuel pump pressure .you need to have the fuel pressure tested .
Other possible cause for your P0172 code .
Ignition misfiring, bad plugs or coil boots.
Faulty fuel injectors.
Ignition misfiring, coils bad
Incorrect fuel pressure. test fuel pressure
Faulty Mass Air Flow (MAF) sensor,Most common issue
Faulty front heated oxygen sensor.
Exhaust gas leaks.
Take a look at the throttle body is it coked up with black carbon deposits if so clean the throttle body and plate first clear codes and test drive .this may sort out the lumpy idle .
Seen a lot of IAC go faulty and cause this code .
With the engine running disconnect the IAC if there is no change in RPM replace the IAC valve ..
Please rate my help a good to excellent if you are satisfied .
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Kind regards Greg
Customer: replied 1 year ago.
It has just had a reconditioned engine fitted it allso has a new genuine front 02 sensor fitted it does not appear to misfire on idle and when reved just off idle it is sweet can u tell me where the iac valve is and the mass air flow meter thanks
Expert:  Greg replied 1 year ago.
Hi .
Do you have a good scan tool with live data .just seen yours is the later model with electronic throttle body .
Do you just have the one code P0172 ..
Greg