code 64

[sundragon]

anyone know what a code 65 is? i have a 95 DHOC 5spd 165K miles, i have a problems with the plug in cylinder 2 ( if the order is 1,2,3,4) burning out and haveing to be replaced. I also get a code 43 i know that is a multipal cylinder misfire and means its time to replace that plug again. i have been told by a shop to replace the crank position sensor and i did. that made no change. thats how i found out that 1 plug was going bad by rep[laceing them one at a time. It would get so bad it would start to backfire when excelerating from a stop or when less then 2K RPMs im getting frustrated i was told to check the injector but i dont know how to do that. anyone have any sugestions??

[sundragon]

i replaced that plug in cylinder 2 and its running great again. i was told by a guy at autozone to take the injector out and clean it. i have never dont anything like that befor but it does not look all that hard. any of u have stock injectors laying around u want to sell for a 95 DHOC?

[RadarLove]

Code 64 (what you put in the title) is cat efficiency failure. Code 65 (what you put in the post) is either a power steering switch failure (4-digit code P0551) or a brake switch failure (P1391).

Try switching the injector from #2 with another cylinder (#4 for example) and see if the plug issue magically swaps over. Check the plug's condition every couple of days rather than waiting for a code though. If it switches over, you may be having a fuel issue in that cylinder because of that injector. If the injector is sticking open, then that cylinder is over-rich, washing down the cylinder walls and increasing wear, whicl leaning out the other 3 cylinders. If the injector is sticking shut, then that cylinder is too lean, increasing risk of detonation (hole in piston), and making the other 3 cylinders too rich... You can usually find a local shop that does injector cleaning for $40-50, where they take them off the car and run some sort of solvent through them under high pressure. You could try running store-bought injector cleaner for a couple of tanks. Salvage yards usually will have injectors at reasonable prices, worth a shot, although the ones on the '95 Neon have a different connector than the other years... SOHC and DOHC are the same, ATX and MTX have different part numbers for some reason, and they look a little different, but fit the same... While you're swapping the injector over, take a good look at the rubber seals on both ends (fuel rail and manifold). Those can rot or tear after a while, which means leaking (which means lean cylinder). The dealership can get you a replacement set pretty cheap.

And in case no one's told you, don't use platinum plugs on the Neon, or any other wasted spark DIS car...

Best of luck!

[sundragon]

THanks!! first i did have a type-o its code 64 that i get. I am calling a shop as i type this to ask about injector cleaning. and ill post back here what i find. from now on im only useing chapion copper plugs i have NO mods on this but for a K&N filter so no need anyway i dont kown what i was thinking.