i have 2002 type x with a 3.0. i keep getting an intermittent check engine light, which indicates i have a misfire on # 4 cylinder.all of the wiring has been checked and all of the plugs, injectors and coils have been replaced the problem started with the #1 plug and has moved through #2,3 and now $4. i am now getting a trouble code referring to "flight recorder data being stored". this code is indicative of the problem i am having.if this sounds reasonable where can i find the inertia switch that might be causing the problem?
JA: Does the light stay on, or does it blink?
Customer: when the car is running at lower rpms,the light is not always on , however if i rev the engine above 2200 rpms ,not always, the check engine light comes on steady and the amber alert light will also come on. the engine will rev up as long as the two lights stay on steady.however, when they start flashing the engine will go into a limp mode
JA: What is the make/model of your car?
Customer: 2002 type x with a 3.0
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: yes. i have replaced all of the plugs injectors and coils. ihave also replced the upper intake gaskets and the fuel filter
. i checked the fuel pressure wrth a guage and it was registering 50 psi at idle and 55 psi at higher rpms
JA: Anything else you want the mechanic to know before I connect you?
Customer: this car was previously owned by my 21 year old grandson who was rather hard on it