- :
- Mazda, Protege5
I have been having an intermitted issue(s) on my 2003 Mazda Protege5 with 150,000 miles and a JDM motor. I cannot find a solution, can someone please help?
The problem started last winter, and was not nearly as bad as it is now. The symptoms went away in the spring (warmer weather?), but came back bad starting in October when the cold weather came.
The symptoms about after 15 minutes of driving, the motor starts to lose power. It starts as a split-second loss of power that jerks the car. After a while, it leads to more violent jerking under load, and sometimes total loss of power. I would be driving down the interstate, and the RPMs would start to drop as I press harder and harder on the gas pedal.
I was getting stalls a lot too until I replaced my fuel pump/filter, but sadly, this did not fix the power loss issue. Before the fuel pump replacement, the P5 lost power totally one day and would not restart for a few minutes.
I very rarely get codes, but the ones I have gotten are
-P0090 - I stopped getting it after replacing the FPR
-P0340 This happened twice, and only during the most violent jerking/power loss
Things I have done to try to fix the power loss issue
- Replace the air filter
- Replaced a somewhat new coil pack that looked damaged
- Replaced the FPR
- Replaced the Fuel Pump and Filter - a huge pain in the butt due to rusted screws. The car seems to drive better, no stalls, but the power loss has not gone away
- Swapped the Camshaft Position Sensor with a friends from a MSP
Thoughts on what else it could be:
-Engine coolant temperature sensor this would explain why it might ride like crap after the vehicle warms up. I had this issue on my MR2 Turbo, but I had a CEL with this, which the P5 does not have any.
-Plugs - these were replaced in the last 5k miles, but I might just replace them as plugs are cheap.
-Timing issue I have no idea if the belt was ever replaced, but if it was the belt, why would the symptoms be intermitted? Maybe some other timing related issue?
-wiring/electrical issue this is what I am mostly worried about, since it is a intermitted issue, I doubt it will be easy to find a solution to the problem if there is a short or damage wire somewhere.
I have done quite a bit of research on the issue, but I cant figure it out. I have been using my truck to commute with, but I really need my car back. I also dont want to keep on throwing parts at the car. It is becoming too expensive. I do have a MSP to borrow parts from.
Anyone have any thoughts of what to do next?
The problem started last winter, and was not nearly as bad as it is now. The symptoms went away in the spring (warmer weather?), but came back bad starting in October when the cold weather came.
The symptoms about after 15 minutes of driving, the motor starts to lose power. It starts as a split-second loss of power that jerks the car. After a while, it leads to more violent jerking under load, and sometimes total loss of power. I would be driving down the interstate, and the RPMs would start to drop as I press harder and harder on the gas pedal.
I was getting stalls a lot too until I replaced my fuel pump/filter, but sadly, this did not fix the power loss issue. Before the fuel pump replacement, the P5 lost power totally one day and would not restart for a few minutes.
I very rarely get codes, but the ones I have gotten are
-P0090 - I stopped getting it after replacing the FPR
-P0340 This happened twice, and only during the most violent jerking/power loss
Things I have done to try to fix the power loss issue
- Replace the air filter
- Replaced a somewhat new coil pack that looked damaged
- Replaced the FPR
- Replaced the Fuel Pump and Filter - a huge pain in the butt due to rusted screws. The car seems to drive better, no stalls, but the power loss has not gone away
- Swapped the Camshaft Position Sensor with a friends from a MSP
Thoughts on what else it could be:
-Engine coolant temperature sensor this would explain why it might ride like crap after the vehicle warms up. I had this issue on my MR2 Turbo, but I had a CEL with this, which the P5 does not have any.
-Plugs - these were replaced in the last 5k miles, but I might just replace them as plugs are cheap.
-Timing issue I have no idea if the belt was ever replaced, but if it was the belt, why would the symptoms be intermitted? Maybe some other timing related issue?
-wiring/electrical issue this is what I am mostly worried about, since it is a intermitted issue, I doubt it will be easy to find a solution to the problem if there is a short or damage wire somewhere.
I have done quite a bit of research on the issue, but I cant figure it out. I have been using my truck to commute with, but I really need my car back. I also dont want to keep on throwing parts at the car. It is becoming too expensive. I do have a MSP to borrow parts from.
Anyone have any thoughts of what to do next?