Neon won't start

Posted By: catman56

Neon won't start - 09/13/11 12:56 AM

My 1998 neon has spark and fuel.The compression is good so I would say the timing belt is intact however it will not start..Anyone have an idea what it might be?

Posted By: dOoC

Re: Neon won't start - 09/13/11 12:59 AM

Codes on the key-dance ?

Posted By: johnzgarage

Re: Neon won't start - 09/13/11 01:26 AM

I would double check the spark and good fuel psi.....Ive ran a 96 neon with a nickle size hole in a piston for 100's of miles.....It just wouldnt die !!!! I put a used salvage yard piston in it and 75K more miles on it before i sold it. Great little cars.
If you are shure you have good fuel psi and spark, you might want to look at what the ecm is doing.

Posted By: catman56

Re: Neon won't start - 09/13/11 01:44 AM

I got 4 codes..p0300 p0301 p0304 and p0140..The 300 codes are cylinder misfires..I am not sure what the 140 code is

Posted By: hemigod426

Re: Neon won't start - 09/13/11 01:45 AM

clean battery cables and lugs then put them back on, neons will turn over and not get full power/ground to pcm, with no codes the stumper nonfire...

Posted By: catman56

Re: Neon won't start - 09/13/11 02:08 AM

Thanks everyone for the the input

Posted By: In_The_Pink

Re: Neon won't start - 09/13/11 02:18 AM

Quote:

I am not sure what the 140 code is

"Downstream O2 Sensor Stays On At Center"

http://www.neons.org/codes/1gen/1gen.html

Posted By: rallye73

Re: Neon won't start - 09/13/11 06:20 AM

Check wiring going to the crank sensor. They are bad about the wiring getting burnt up over time. Also the cam sensors are usually good for about 100k and then they are done.