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2003 Dodge Neon - Page 5 Questions & Answers
Symptoms of a bad starter
hear a clicking sound,but bendix gear not engaging the flywheel,(bad Bendix),or you hear nothing but a spinning sound(bad solonoid switch,maybe you hear a dragging sound as if its losing power brushes ,or armature bad,or bad battery
My car is Shaking while idling whats the deal
Check the 3 motor mounts and 1 transmission mount. As they wear out the motor is allowed to shift and vibrate. Be sure to use only original dodge products though,as the cheaper ones won't last a year. This happened to me. I hope this helps.
I am trying to get my car fixed ,My check engine light is on and i took it to pep boys, they gave me the codes p0121,p0068,p1681,p0122,and p0128. Can someone please explain what i need to buy so i can
regarding the p0121 -
The powertrain control module (PCM) supplies a 5 Volt reference signal to the throttle position sensor (TPS) and usually a ground also. A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code.
Possible solutions
1. If you have access to a scan tool, see what the idle and WOT (wide open throttle) readings are for the TPS. Check if they're close to the specifications mentioned above. If not, then replace the TPS and re-check.
2. Check for an intermittent open or short in the TPS signal. To do that, you can't use a scan tool. You'll need an oscilliscope. The reason is because scan tools take samplings of many different readings over just one or two data lines and can miss an intermittent drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes.
3. If no problems were noticed, perform a wiggle test. Do this by wiggling the connector and harness while watching the pattern. Does it drop out? If so, replace TPS and re-check.
4. If you have no TPS signal, check for 5 Volt reference at the connector. If it's present, check the ground circuit for open or shorts.
5. Make sure the signal circuit isn't 12V. It should never have battery voltage. If it does, trace circuit for short to voltage and
repair.
6. Look for any water in the connector and replace TPS as necessary.
reference:
http://www.obd-codes.com/p0121
refer
Sunroof leak
Drop the head liner & see if the drain tubes are attached
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