Got a check engine 1-4 yesterday on the 348. The codes I pulled were 1212,Lambda regulation intake manifold compensation;and 1121 RPM sensor. Did not seem to affect performance of the car but I am wondering what may be the cause of the MIL. Can anyone point me in the direction of something to check? The car is a 1990. Thanks Matt
The 1-4 may be your catalytic converters...check the search engine there are lots of posts regarding this subject... [email protected]
after I cleaned ou the codes I went for a drive and the light came on for about 5 min and then went out. Hasn't come on again. Maybe it just was jealous that I was spending too much time in the Esprit? Matt