QuestionI changed the engine for my car (the dealer told me the engine is 2000, is it lying?). But my problem is check engine light comes on now. I went to Canadian Tire and they scanned and told me two codes fault, one is PO325 and the other is P1400, they cleared codes, but light came again on the next day. Do I need replace the parts to fix it? What is the best way to turn off the light if the problem is only because change the engine? I do not want to go back this dealer for fixing it, since he is lying all the time.
Thanks very much.
Answerpo325 = knock sensor
p1400 = EGR & Canister Control Solenoid Valve
knock sensor -
"It allows the engine to run with the ignition timing as far advanced as possible. The computer will continue to advance the timing until the knock sensor detects pinging. At that point the computer retards the ignition timing just enough for the pinging to stop.
A knock sensor assures that you're getting as much power and fuel economy as is possible from your engine. "
- wikipedia
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egr and canister control valve solenoid valve
"The Exhaust Gas Recirculation (EGR) system routes some of the engine exhaust gas back into the engine intake system to reduce emissions. Nissan Maximas use a system that cuts and controls vacuum applied to the EGR valve with an electric solenoid to suit engine operating conditions. This "cut and control" operation is accomplished through the Electronic Control Module (ECM), in conjunction with an EGR and canister control solenoid valve. When the ECM detects any of the following conditions, current flows through the solenoid valve "
nissan maxima but same principle.
http://autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/1f/4e...
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i hope this helps, and yes they will need to be replaced. good luck and email me the results of this.
xxp_sebby@yahoo.com
