Mitsubishi Shogun GDi 3.5 24V (6G74) 2000 - Sounds like an ignition misfire, new plugs fitted #Archived Message
Posted by Shaun Dale on May 24, 2007, 3:23 pm
The vehicle has what sounds like an ignition misfire. The garage that brought it to me fitted new plugs. I have checked all the coils on the bench and by unplugging one at a time. I pulled out the following flash codes, but the Autodata does not list them all. 13 IAT 25 Baro sensor 41 Injectors circuit malfunction 56 92 Finally got communication with it using my Axone but unfortunately the battery went flat before I did and there are now no codes. Several road tests have brought none back. Gas results are: O2 0.13% CO2 13.8% HC 146ppm CO 0.74% Lambda 0.983 Looking at live data the Lambda sensor switches ok. The Bank 1 AFR is -4.7% and Bank 2 AFR is 0.0%.CTS and MAF all appear ok. I am concerned that it may have a faulty injector, or worse a sticky valve. Any help gratefully received particularly in decoding the flash codes that the Autodata book does not list.