1996 Dodge Dakota 8 cylinder code P0171

Go to autozone or similar and have them scan vehicle

Have you had the computer scanned for trouble codes yet ?

when disconeted battery it reset the code.then when you drove it the code poped back up. Scan you computer and see what code comes up .autozone

P0463 relates to circuit high input for fuel level sensor

P0700 Is a MIL request - control system for transmission

When "check engine" litgh tun on, the PCM (computer) is warning that some fault code is stored there. Autozone could scanned your PCM and show exactly what fault codes is there; if your O2 sensors was replaced, I assuming that they can see this codes... so, they reset and delete all codes stored there? Scanned the PCM after this change?

Keep us updated-

Go to Auto Zone and they will scan your computer for fault codes for FREE. No need to guess and waste money you see on items not needed

It sounds like your engine is running very rich yet the computer thinks it's lean. P0171 is a lean code for bank 1 (the side of the engine with cylinder #1) Pretty much the only causes could be a large exhaust leak, bad o2 sensor or bad computer. Is the p0171 the only code?

you need to have your computer cleared of all errors after the problem has being resolved. this can only be done with a scan tool. until this is done ur car may still run poorley

I could be wrong but it sounds like you need to put some attention towards the cat and the O2 sensors.

dont know lots about this witout engine size but some have 1 coil per cylender possible coil is bad or plug 02 sensor will cause some problems but a miss fire will cause it to run like trash