Posted on Feb 17, 2010 Click on the following direct Link. When your car's 'Mazda Protege P0090 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. I can just clean my old ones right? The solution is here : Mazda Protege P0090 Possible Solution : The crankshaft sensor signals the fuel injection computer or the ignition control when the cylinders are firing. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off. Happens a lot with new members. Googling those raises a lot of possibilites and I'm looking for some advice on where to go next in the diagnosis.
Clear the p0090 if it comes back go to Mazda and get a new gas cap, do not get one from a parts store, they do not like them. If the light comes back on, take it to a Mazda service center and let them read the code. I'll keep an eye out. What causes the P0090 code? YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. The service manual contains the list of possible codes about few hundreds and describes what each code means and what needs to be tested.
Hey bud, Just for the hell of it, test the injector itself first. If either sensor isn't working correctly, the car will run rough and the engine will be less efficient. I'm not sure which cylinder is 1, but it seems like a huge coincidence that 1 cylinder is having less compression and 1 cylinder also has an oil soaked spark plug. I'd guess that if you can solve the P0090 code then the other will go away. A visual inspection will be performed to look for any damaged or broken wiring, sources of poor connection, and proper operation of the fuel pressure sensor.
I just did some more searching on alldatapro and I have something new that I think you should check. Intermittent Check Engine Light: If the check engine light on your 2002 Protege is intermittent, try to take note of the conditions when this happens. They will be able to tell you what is wrong. You prolly have a vac leak allowing unmetered air. Any thoughts: injector, fuel pump, leaks? Where'd you get that 13.
Sorry for long post just trying to give a detailed response. What causes the P2009 code? Symptoms typically include a no start condition, extended cranking before engine starts, hesitation upon acceleration, and decreased fuel mileage, along with a stored trouble code and malfunction indicator lamp illumination. What are the symptoms of P0090? Most people may only notice the Check Engine Light and no other adverse symptoms. The lower compression is on the opposite side on the driver's side. It's supposed to be appx 13. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light.
It's located on the back of the intake manifold and apparently can cause the exact issues you're having. Not sure about Mazdas but Fords have two coolant temperature sensors. Any things I might be missing? This provides access to the history, pending, and current codes that include the freeze frame data which tells technicians what the vehicle was doing when the code was set. I replaced the fuel pressure regulator to no success. Check that injector first though. .
Failsafe mode will remain in effect until normal sensor operation is detected or the issue is fixed. Mar 05, 2010 yes, some auto part stores can check your codes for free and reset the light,then you will know what caused the code and be able to figure out weather it's some thing serious or not. A bad gas cap will throw a p0440 or some sort of evap code. I changed out all spark plugs. I was actually eying that part out this afternoon when I was working in the hood. Once you're started, it always feels better and you know you'll end up fixing it in the end.
The road test should be under similar conditions to the freeze frame data. Hi all, My car has started having some real problems on accelerating and it recently flashed a cylinder 1 misfire and a P0090 code, I can't remember the exact wording of what a P0090 code is but it's something like fuel pressure regulator circuit. If its a plug or plug wire it will give a code for that specific cylinder. Mar 22, 2010 First, check the relay for the cooling fans. How does a mechanic diagnose the P2009 code? These scan tools let technicians view live data which in turns can show if a sensor or solenoid is functioning properly or not quick. I'm still wondering if the cyl 1 misfire changes how the engine runs if you unplug that fuel injector from the harness or not.