i have a nissan micra 1.2 2006. it has a mis fire when hot,timing chain has been replaced. fault code p0138 comes on on dash. any suggestions
Country: United KingdomMake: Nissan/DatsunModel: micraYear: 2006Engine: 1.2
timing chain replacement,engine earths from battery to body-gearboy & the one under offside headlight
Hi welcome to JA.com.I will answer your question the best I can,This code has nothing to do with the timing belt as this is a P0138 O2 sensor /Possible cause. Harness or connectors (The sensor circuit is open or shorted.) Heated oxygen sensor 2 is faulty and needs replacing.What trips this code is an excessively high voltage from the sensoris sent to ECM. so wiring short or a bad O2 sensor.In most cases it is the sensor but have this checked first as i don't want you to replace a part when it is still ok and is only a wiring fault.If you need further assistance please get back to me..Regards Greg
not that fussed about the code on dash, it was more about the mis-fire when hot
If you have a hard Misfire then you would normally have a P0300 code,Recheck for this code . you may have one of the following P0300 , P0301, P0302P0303, P0304 , if you have any of these then we can narrow down to which cylinder is missing?Misfire when hot could also be a bad head gasket have the system tested for gasket failure Best tool used for this is a combustion chamber leak test this will verify a bad head gasket.Remember a bad head gasket will not always make your engine overheat so don't rule this out as a possibility Please check this then get back to me.Regards Greg
it is not like a head gasket fault. its like a bad hesatation whilst accelarating, then it clears about 3500rpm. no other fault codes in ecu. i have tried new plugs & coil packs as well.
Hi .Have the injectors cleaned professionally, just using fuel injector cleaner in the tank will not always cut it,I'm pretty sure this could well be your problem .Have the injectors cleaned this should be done once every 5 years anyway.Get back to me with the results Greg