Victor1994
Member
- :
- 2002 Mazda Protege5
Hello, I have a 2002 Mazda Protege5 (119k miles) with a low idle and a code for Cylinder Misfire #3 (P0303)
Now I'll start with this, 3 weeks ago I was driving home from work and my CEL came on. I took it to advance auto right away and discovered 3 issues.
P1250 - Fuel Pressure Regulator
P1250 - PRC/EGR Vacuum Solenoid (Device held by two bolts on top of intake manifold and on the other end of the vacuum hose connected to the Fuel Pressure Regulator)
& P0303 - Cylinder 3 Misfire.
I replaced the Fuel Pressure Regulator with one I found at the junkyard and it cleared one code, and a week later I replaced the PRC/EGR Vacuum Solenoid. However, right after I replaced the Vacuum Solenoid, connected the battery, and started the car, it stalled. Second time starting, it ran and then stalled once in drive. 3rd time, it ran for a while, drove around the neighborhood and then stalled again. After that, it didn't want to stall anymore but has a low idle at 500-400 RPM when in park/neutral, but drops down and shakes a little when in drive and reverse (Reverse is worse). Driving on the road and highway it seems like nothing is wrong and goes until it becomes idle. I disconnected the battery 3 times this past week, and I noticed the car stalls a lot and then doesn't want to again everytime I disconnect and reconnect the battery. The spark plugs, wires, and coil packs were put in at June this year, and I replaced all of them with a continued low idle and misfire. I cleaned the throttle body (Might have to again since I don't think I did a good job) and I'm having a hard time finding time (and how) to clean the IAC (Idle air control) and EGR Valve.
The only code left is the misfire in cyl #3. Some people have told me it could be a clogged/dirty fuel injector, but I'm trying to rule out everything else before going there (Injectors are expensive!) (headshake
Also, my car isn't violent at idle, there's a slight vibration that's noticable even with my exhaust on. And letting off the brake without pressing the gas pedal has a lot of hesitation until I press on the gas.
What do you guys think it is? I'm having a hard time and need the car for work.
P.S. - I cleaned the PCV Valve today (Also a couple months new), no change in low idle.
Now I'll start with this, 3 weeks ago I was driving home from work and my CEL came on. I took it to advance auto right away and discovered 3 issues.
P1250 - Fuel Pressure Regulator
P1250 - PRC/EGR Vacuum Solenoid (Device held by two bolts on top of intake manifold and on the other end of the vacuum hose connected to the Fuel Pressure Regulator)
& P0303 - Cylinder 3 Misfire.
I replaced the Fuel Pressure Regulator with one I found at the junkyard and it cleared one code, and a week later I replaced the PRC/EGR Vacuum Solenoid. However, right after I replaced the Vacuum Solenoid, connected the battery, and started the car, it stalled. Second time starting, it ran and then stalled once in drive. 3rd time, it ran for a while, drove around the neighborhood and then stalled again. After that, it didn't want to stall anymore but has a low idle at 500-400 RPM when in park/neutral, but drops down and shakes a little when in drive and reverse (Reverse is worse). Driving on the road and highway it seems like nothing is wrong and goes until it becomes idle. I disconnected the battery 3 times this past week, and I noticed the car stalls a lot and then doesn't want to again everytime I disconnect and reconnect the battery. The spark plugs, wires, and coil packs were put in at June this year, and I replaced all of them with a continued low idle and misfire. I cleaned the throttle body (Might have to again since I don't think I did a good job) and I'm having a hard time finding time (and how) to clean the IAC (Idle air control) and EGR Valve.
The only code left is the misfire in cyl #3. Some people have told me it could be a clogged/dirty fuel injector, but I'm trying to rule out everything else before going there (Injectors are expensive!) (headshake
Also, my car isn't violent at idle, there's a slight vibration that's noticable even with my exhaust on. And letting off the brake without pressing the gas pedal has a lot of hesitation until I press on the gas.
What do you guys think it is? I'm having a hard time and need the car for work.
P.S. - I cleaned the PCV Valve today (Also a couple months new), no change in low idle.