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How do I replace the throttle position sensor? (I scanned the car and received a code for the sensor already did plugs,wires but car cuts off wen stopped runs great if throttle is open.
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P1195 = EGR (exhaust gas recirculation valve) Boost Sensor Circuit Check the sensor and the wiring/connections to it.
Mazda's also had issues with the vacuum lines to the EGR valve and the ports in the throttle body plugging up! I think some models even had a recall so it may be worth checking with your local Mazda dealer or have your father or you check online for Tech service bulletins and recalls for Mazda!
Idles are preset ,and not adjustable on fuel injection,but look where the throttle cable attaches to the throttle,and where the throttle sets,there might be a screw with a lock nut,and will allow some setting,but not much,cause the throttle position sensor does this threw the computer.The throttle position sensor is on the throttle,on the opposite side of where the throttle cables attach.If this was helpful,then please rate,thank you.
An engine that
hesitates, stumbles or misfires when accelerating or when
it is under load is an engine that is either sucking too much air, not
getting enough fuel or misfiring. If the Check Engine Light comes on,
you may find any of the following codes:
• P0171, P0174 Lean
fuel condition codes • P0120 to P0124 Throttle position sensor codes •
P0222 to P0229 Throttle position sensor codes • P0400 to P0409 EGR
related codes
If there are no misfire codes, a common cause of
acceleration stumble is a bad throttle position sensor (TPS). The TPS
tells the computer how far the throttle is open. The computer uses this
information to determine how much fuel is needed to maintain the correct
air/fuel mixture and when extra fuel is needed if the throttle suddenly
opens wide.
Another common cause is dirty fuel injectors. If
varnish deposits have built up in the tips of the injectors, they won’t
spray as much fuel as they normally do, or will “dribble” fuel instead
of spraying a fine mist. This creates a lean fuel mixture and
conditions that are ripe for stumble and hesitation (also misfire). Look
at short term fuel trim (STFT) and long term fuel trim (LTFT) with your
scantool.
If the numbers are high, it tells you the engine is running lean and
the injectors need cleaning. Treat mild cases with a high quality
fuel-injector cleaner additive. Severe cases require professional
cleaning equipment.
Also if this sensors apply to your
vehicle, camshaft sensor or
crankshaft sensor if sensors bad you don't get any spark. Also
run a scan on the car.
check the mas air flow sensor(is this the 6 cyl) the sensor has a problem with the nose piece inside not moving enough to tell the ecm the propper air flow for the cold start,also check throttle valve for dirt build up around it-if its a four cyl repost
Just had one of these with a maxima, the code is multiple random misfire, when a misfire occurs, to start is do the basics, replace the plugs, check fuel pressure, clean throttle body, and coolant is topped up. also I have seen if the O2 sensor is not working correctly is can cause a misfire, you will need a scan tool to look at what the O2 sensor is doing, o rby back probing the sensor (don't damage the O2 sensor wires). If it wires replace them as well, if it has coils they usually dont give that code if one fails, it will pinpoint that a certain coil if one fals.
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