I bought this car about 3 weeks ago and the service engine light keeps comin on. reads the p0442 code (small leak).. changed the censor and the gas cap a few times.. noticed it coems on everytime my car gets to half a tank of gas.. what doesthis mean or what could it be.. tired of takin it to the small dealership i got it from
The leak is in the evaporator system that purges fumes out of the tank. check for leaks in all systems that attach to tank. all it takes is a rotten rubber line with a crack in it.
SOURCE: 2003 Lancer the service engine soon light keeps
I can see that you've done the right things, but something is still amiss... Mitsubishi says
A code P0421 may mean that one or more of the following has happened:
Measure the voltage at the oxygen sensor on Bank 1 (the rear sensor, or the sensor after the converter). In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.
One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.
SOURCE: service engine light
You need to have the system tested for trouble codes, Kragen auto and othes do this for free, post the trouble code back here on this thread.
SOURCE: 2001 mitsubishi galant shaking while in idle
Check your motor mounts, recently engine idled rough when in nuetral or stopped in drive, also jerked when put in reverse. took it to a automotive shop and found motor mounts cracked. Runs great now
SOURCE: P0442 code-2004 mitsubishi diamante
its an evap system small leak. most common cause is a loose gas cap. but could be any leak in the tank vent system
SOURCE: 2002 mitsubishi service engine soon light without any problems
My check engine light has been on for over a yr and a half now i have done EVERYTHING possible to fix this and spent tons of money on replacing parts that the diagnostic machine told me still nothing has worked! any other suggestions on what i should try next??
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having a smoke test done on it today. thank you all for ur feed back on my problem.. lots of helpful hints.. once i get the smoke test results back i will post back.. my car isnt under any warranty however i do need to look into possibly getting one. the dealership does offer it. when i got the car they said they would fix the cat. conv. if thats is the problem but their mechanics can only go so far with trouble shooting a problem (which isnt good since they are a dealership) so when their mechanics took it they said it wasnt grounded right so they re ground my computer in my car before i drove it off the lot and now its doin this.. any way waiting for the smoke test results later today. i will let u all know what they say and would really like your feed back on that also if you can thank you all for your help. it is/was much appreciated.
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