Question about 2003 Dodge Neon

2 Answers

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

Changed my thermostat, and throttle sensor already.

Posted by on

Ad

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Dodge Master
  • 513 Answers

FIRST PEP BOYS MAY NOT BE YOUR BEST CHOICE FOR THIS TYPE OF ISSUE, NOTHING BAD ABOUT THEM BUT THIS IS NOT THERE NORMAL TYPE OF REPAIRS. AFTER YOU REPLACED THESE PARTS DID THEY CLEAR THE CODES? YOU MAY HAVE OLD CODES THAT ARE NO LONGER REVELANT. CLEAR THE CODES AND RETEST. ONE BAD SENSOR MAY CAUSE THE ECM TO SET MULTIPLE CODES

Posted on Dec 08, 2014

  • Rachelle
    Rachelle Dec 08, 2014

    How would i get the codes cleared ?

×

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

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 repairI am trying to get my car fixed ,My check engine l - icon1.png.
6. Look for any water in the connector and replace TPS as necessary.
reference: http://www.obd-codes.com/p0121
refer

Posted on Dec 08, 2014

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Check engine light comes on after radiator was flushed


What I will do change coolant,do you know what codes getting? I do not trust does flushes

Feb 22, 2016 | 2005 Land Rover LR3

1 Answer

How to fix p1121 code in dicor 1.4 l disel


P0120 Throttle/Pedal Position Sensor/Switch A -Circuit Malfunction
P0121 Throttle/Pedal Position Sensor/Switch A -Circuit Range/Performance Problem
P0122 Throttle/Pedal Position Sensor/Switch A -Circuit Low Input

,try changing the throttle pedal switch/mechanism on the floor in the cabin

Aug 05, 2014 | Tata Indica Cars & Trucks

1 Answer

Need help with a 1999 Chysler Concorde LXI Code Issue P0122


did they tell you to replace.TPS,maybe needs to be adj.

Mar 09, 2013 | Cars & Trucks

1 Answer

Check Engine Code P0128


Look for air bleeds, sounds like the coolant has air pockets. And ALWAYS check coolent level with heater set to full heat, or water valves would be closed, and blocking coolant...

May 24, 2010 | 2002 Hyundai Accent

1 Answer

I have p1000 and c1175 codes


P0128 is a Coolant Thermostat Malfunction

P1000 shows that the fault code has been reset recently (but this code will not bring the warning light on)

C1175 I think is Speed Wheel Sensor LR Input Circuit Failure or Input circuit failure and could be directly related to your ABS fault light indication.

Jan 27, 2010 | 2003 Jaguar X-Type

1 Answer

Stuck in gear,with check engine light on,took battery of for 1hr,drove ok for 1mile.check engine light back on,stuck in gear.will not shift up or down.if you select low range the auto box will change...


This vehicle is going into "safe mode" get it to a parts store like Orilley's or Pep Boys, they will download the code for free and give you better direction.

Jan 16, 2010 | 2002 Jeep Grand Cherokee

1 Answer

Check engine light just went on for the first time ever. The car has 175,000 miles on it. Just had all the fluids and belts checked. Car is not making any noises. Gas cap is sealed on tight. Any...


Probably the simplest and cheapest thing to do, would be to run in to an "autozone, Pep Boys, Advanced auto, or similar bigger autoparts supplier as most will perform a trouble code scan "free" of charge, which will pinpoint better where to look for the reason engine light is on. It fix isn't obvious after that, write down the code(s) they gave you and get back to us and we'll assist you further if needed. Better to take that route, than start guessing and replacing parts unnecessarily.

Dec 06, 2009 | 2000 Toyota Camry

1 Answer

What do I need to check if code 442 comes up.


442 cose states that there is a small leak at the evap control system (near fuel tank)... smell gas?

Sep 28, 2009 | 2006 Pontiac G6

1 Answer

1998 Jeep Wrangler Sport codes P0121 and P0122


did you check voltage to sensors if you need help with proedure, contact me, or you may try patrs houses on line in how to section.

Oct 04, 2008 | 1992 Jeep Wrangler

Not finding what you are looking for?
2003 Dodge Neon Logo

79 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dodge Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8269 Answers

Are you a Dodge Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...