I have a 2002 3.3 Uk Grand Voyager and after I had replaced the bulb in the Check Engine Light (The bulb was missing when I bought the car !), it has given me codes P1684, P0601 and P403.

The 1684 I understand is not to important, the P403 relates to the EGR valve which I had in bits last week to replace a tube, and also ran it with it off an unplugged for a few miles so not to sure if this would cause that code, but the P0601 is what is worrying me as if what I have heard is true it is going to be expensive!.

I bought the car last september and the bulb was pulled prior to that, so how long will the PCM last before it fails completly ?, and is there a cheap option !.

Many Thanks.

 

PCM must be replaced. It could last for years, or it could fail Yesterday.....But either way, when it does fail, you are going NOWHERE.