I picked it up with just over 160K on the clock. I have been getting the P0170 code and the closest commonality I can determine for the cause is that it happens within a couple miles right after refueling. Either the mass air flow sensor connector becomes contaminated with engine oil, the sensor hot wire becomes fouled with oil or other debris, or the air inlet pipe is cracked or broken allowing unmetered air to enter the engine. To the best of my knowledge the code will need to be erased to make the light go out. It is more common to see P0171 Citroen, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars. Check all vacuum hoses and confirm none are cracked, disconnected or missing.
The Nissan code 0115 which converts to P0170 which is fuel system too lean, bank 2. I just did mine last month for the exact same thing. No check engine light so far. Fuel trim malfunctions are rarely exhibited in domestic and Japanese vehicles but are more common in European vehicles. We are not responsible for any actions you take on your vehicle. I looked em up but don't really know where to start. For American cars, the most common fuel trim error codes are P0171, P0174, P0172, P0175, which refer to fuel trim malfunctions.
What does the code mean? If you have any doubt as to repairs on your vehicle, please contact your technician. The problem could be that your fuel mixture is either too rich or too lean. On the other hand, if it is a maintenance item to replace certain sensors preiodiclly I don't mind going in there and doing this - I have 128K miles and am the original owner. Shouldn't the vacuum be higher? Can anyone point me in the right. Gilly Gilly- I cannot tell you how long it took me to find this post. The car is running very smooth at idle and strong during acceleration.
It may be clogged, or damaged due to the long-term effect of code P0170. Two things that I'm concerned with are the engine temperature 212F and the manifold pressue 12. Surprisingly while driving back the light goes off Im confused please provide your opinions and what should I do. It may also have a P0173 referring to the same malfunction but on bank two. The P0170 code can range in seriousness. If the code does not immediately return after the completion of a few drive cycles, it would be safe to assume that the problem had been resolved. The 18-20 you are remembering is gauge pressure vacuum.
I would try cleaning it resetting the code and see if it comes back. It has been refurbed recently. It is more common to see P0171, 0174, 0172, 0175 codes set with regard to fuel trim malfunctions on American cars. Shouldn't the vacuum be higher? So far I've noticed that the code always occurs at idle car speed 0. Car runs a bit rough under power related fine at idle. Look up the other , please use the search box. Repair cause of oil leak and replace oil-fouled O2 sensor.
Just wanted to thank you. I'm suspecting b is the case. This problem is likely a powertrain control module if no other issues exist. A bad O2 sensor could cause a P0170, or P0173. For a lean condition, you simply have to fix the problems that cause the engine to run lean.
However, if the code does return, it is likely that the catalytic converter is at fault. The shop read the codes but couldnt bring it into the shop until Monday. Tonight I'll switch the O2 sensors. The check valve should flow only one way. What are the common causes of code P0170? The connector is prone to cracking and can trigger this fuel trim code. As such, these requests are far less likely to cause a code to be stored. Does anyone know what is it and what should I get fixedreplaced Cheers Jim It may be a pre-cat O2 sensor from what Im reading.
Pretty confident it's the mass airflow sensor though. The highest I've seen is +2. Look for damaged, burnt, broken, shorted, or corroded wiring and connectors. I have a 98 mercedes benz ml320 elegance, 81,000 km, V6 with a check engine light on. I know its not the O2 sensors.