I'm trying to fix a friends neon and ran it through my works computer. The error code is reading ENG: 51/p0171 fuel sys 1/1 lean I was wondering if anyone else had this problem so I could quickly diagnos it. I'm guessing it's a bad injector but it's not even running funny beside a little miss when you only lightly push on the throttle. Any help would be appreciated guys, thank you.

 

also he leaks oil like crazy I was just going to start replacing gaskets but I believe I remember someone saying about a common oil leak in the neons. It is coming from the back of the motor and it's not coming from the oil pan. Any help guys?

 

Mine leaked oil like mad...then I changed the cam position sensor seal, and bam I dont have fresh oil spots on my driveway. So check that and it was only a $6 canadian part.

 

How hard was that to change???

 

Took me 1/2 hour and its not very hard, more like you need small asian hands to get at it. Undoing the bolts was awkward but none of it was really hard.

 

 

First of all, thanks for the reply man. I went ahead and replaced his valve cover gasket as I did with mine and fixed the problem with the oil leaking on the plugs. I recently noticed it only leaks oil while the engine is running but leaks very fast! As for the injectors I will run some Sea Foam through it and see what happens. Other than that picking up another rail wouldn't hurt? I just don't want to dump money into the injectors themselves just to fix this for him. He has a new family and still wouldn't charge him labor but injectors are still pretty expensive. Either way i'll let you know if the Seaq Foam works. I un-hooked the battery for 20 seconds and the check engine light hasn't come back on since. The throttle issue is happening again so any suggestions with that? it only happens when you push the throttle very gently and it has what some would say is a miss or maybe a hesitation. It sputters and jerks so i'm not sure if that has to do with that lean code or not. Again guys thanks for all the help so far, you've been the most help for me!

John.

 

the oil leak is usually the main seal

 

I'll check that out tomorrow. Also, glad to see someone who appreciates old Fear Factory.