The first time the diagnostic fails, the control module stores this information in the Failure Records. It says the system is too rich; Bank 1 code P0172. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. If this is suspected, prepare to perform resistance, ground, reference voltage, as well as continuity tests on all wiring. I was going to clean it again, but I doubt its going to work. The 7 flashes of the airbag light is a system check.
Which brings me back to the p1811. They will provide valuable info! If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. Enter the 5 character trouble codes in the search box and submit the search. How do you troubleshoot code P1404? In later car models, the car's computer can usually keep the vehicle running, but the engine warning light on the dashboard goes on to warn the driver. Be sure to scroll all the way to the bottom of the page as there is some great info there! Unfortunately we do not have access to the full versions.
Look up the other , please use the search box. The pcm is seeing a longer than normal up shift time, and tries to compensate by raising line pressure. Compare all obtained readings with those stated in the manual. You would need someone to hook up to the vehicle with a scan tool and retrieve the service code to know for sure but the valve is usually the culprit in most cases. Brown with White stripe wire. The on-board diagnostics system and engine control unit are in charge of monitoring a bunch of different, and if they get a reading that's a little out of whack, up pops the check engine light.
Any tips would be very appreciated. Click here to see my recommendations:. This would have to be properly diagnosed by a transmissionTech. After you get the trouble code, post it for us. The object is to reduce combustion temperatures to below about 1 500 0F 800 0C to prevent, or reduce the formation of various oxides of nitrogen, which are the principal components in exhaust gas that forms smog.
However, the setting parameters of this code are not uniform across all applications. Trim went to -22% and 7. There also may be a pcm re-programming for this code. What is so special about these classroom case studies? A proper diagnoses will cost the same if not less than the egr valve. Oxygen sensor voltage is over 0.
I went to get a fuel pressure guage and wow they are high. What Tools Do I Need? We do ask that you please read the info available on the site first so that we can help reduce repeat questions. P1404 Buick Auto Trouble Code P1404 Buick Auto Trouble Code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission. Technician can check Service Information for some accessories. Answer: Well, the egr code p1404 is for closed position performance. Now don't ask yourself; What should you do with P1404 code? Clear all codes after repairs are complete, and rescan the system to see if the code returns.
I even replace the pig tail connection. It can only do this to a point. Any debre in the valve body can cause problems with either of these solenoids. Technician can check Service Information for some accessories. P1404 egr p0742 tcc stuck on.
I can pretty much fix it, I'm sure; I am a former diesel army mechanic. Did you find and correct the condition? Want even more diagnostic training? I just am not sure what to try next. Consult the manual on this point. In gasoline engines, the percentage of recirculated exhaust gas typically varies between 5% and 10%, depending on operating conditions, while on diesel engines this percentage can be as high as 50% under certain conditions. We have a large number of resources to help you repair the problem. We are not responsible for any actions you take on your vehicle. Gray with Black stripe wire.