Hey folks,I'm new the this site and was looking for some help.

I started my 03 Neon the other morning and drove to get a coffee when i noticed it felt/sounded off. I hit the highway and the car would not shift. Putting the car in gear from Park to Reverse/Drive is still smooth and my Speedo is still working correctly.

I checked the codes and came up with P0700. After a lot of research online, most of the information pointed at the input speed sensor. I ordered the new sensor from Mopar and installed it yesterday. The problem persists and now on top of the P0700 I also have a P0503 - Vehicle Speed Sensor Intermittent/Erratic/High.

As this was a simple;unplug and unscrew the old/screw in and plug in the new, I have a hard time believing I did something incorrectly during the installation but you never know.

I'm heading out now to take everything apart and double-check that I didn't miss something simple, but does anyone have any input on this issue?

Any and all help would be greatly appreciated ASAP.

Thanks

 

Check the wiring for any breaks and frays.

 

So I went out to the car, decided to pull the battery to reset.

Took the car out, the moment it should have shifted the engine light came...drove it home. P0700 back up but the P0503 is not.

Can someone lead me in the right direction for the next steps to take?

 

Have you been using a scanner to pull the codes?

 

nope, using the "key on/off" method

I'll be honest, the car is a POS and not worth taking to garage...I'm just hoping it can last me another 2 months before I have to get something else. So if this is something I can spend a couple hundred on and it last me that long I'll be happy.

 

If the P0700 code is there, there is most likely another code stored that'll need to be read with a scanner. Some parts stores will do it for free; call around.

 

Yeah, I've been calling around...$100 to get the car scanned. I guess I'm gonna have to suck it up and bring it in.

Thanks for the help

 

Parts stores charging $100? It's usually either free or not at all with 'em.

 

you don't have an autozone by you that will do it for free?

 

I live in a small town, all is here is garages...no part stores. In order to get to a parts store I will have to drive the Highway for an hour. I expect the car wouldn't survive the trip lol