3rd Gen Protege/MazdaSpeed/P5/MP3 General/Maintenance Discussion for 1999-2003.5 Models Only (BJ Chassis)

engine problems. need help!!!!

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Old January-21st-2006, 04:04 PM
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engine problems. need help!!!!

My car cut off on me the other day but before i go into that, i need to tell you guys this first.

My car had given me problems before with it buckin' sometimes. And also I noticed that:

1. My gas pedal was sticky (now I know that the if the throttle body is dirty it causes that)

2. At times the car just wouldm't go as it should. For instance, there was a few times when the engine started shakin' and the engine was like buckin' and when i tried drivin' it, it would go as it should. Like it was holdin' back a GREAT deal!

3. I used to be able to get 180km/h and I stopped gettin' this. The thing is on 4th gear I could go up to 160km/h and no more but as soon as I shift into 5th, it slows back down to 140km/h!!!

Well those problems were solved when I carried the car to the mechanic. He said the injectors were clogged and he cleaned them out.

Now with that out of the way, I noticed that recently the car started to give me similar problems outlined in 1 and 2. Except that the buckin' wasn't that bad. It just started to buck and it stopped in a few seconds. I got those same symptoms when the car first started to give me problems and it got worst until I finally got it checked it out.

So well I carried it to the mechanic and he cleaned my throttle body. Gas pedal is no longer sticky and I thought the car would have been fine until a few days ago.

It started back with the buckin' ****. I just cut off on the highway! It's a good thing it wasn't busy and I was at a red light. It cut off 3 times on me. The first time it cut off I was like what the hell?! Then I started it and it was givin' me the "no-go" problem. When I got closer to a second redlight, light turning on red, it cut off! I restarted and within a few seconds it cut off. I restarted a third time and drove the car off the road and turned the engine off. I didn't start the car until a few minutes after and the engine was buckin' like crazy. I thought it was probably the injectors clogged up again but I called my mechanic and he told me to throw some water on some sensors.

I didn't throw the water in the correct place but i adjusted a screw and it worked fine after. When I checked the mechanic he said that it's 2 sensors that is goin' bad and that i need to change them. He said that the both usually goes the same time. He didn't even check anything but he said that someone who has the same car as mine had that exact same problem and they needed to change those sensors too.

Now I don't know if he's lying and just tryin' to scam me because he said he could get the sensors cheaper than the dealer. But somehow I have a feelin' that he's tryin' to scam me. I'll try to find out the names of those sensors from the mechanic, I forgot what he said it was.

Sorry for such a long post to whoever reads this, but I appreciate the help.
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