98 BMW 323i Convertable

[l@lo]

Hello everyone.I have a 1998 BMW 323i 6cyl. 5-speed tranny.Im getting a p0170 fuel trim malfunction(bank 1) along with p0188 Fuel tempeture sensor B circuit high input.Right around 2500 RPMs the car stutters a bit.Can anyone help?I want to try to learn fixing it on my own-hopefully.Thanx in advance.

[bounzing_soulz]

im no genius... but i did a google search just to see if i could help at all... and this is what i pulled for the fuel trim malfunction.

Detection Condition:
Fuel injection closed loop correction and learning correction are above the specified value because of system malfunction.

Poosible Cause:
Fuel injector malfunction
Fuel pump malfunction
Fuel filter clogged
Fuel delivery hose clogged or leakage
Fuel return hose clogged
Pressure regulator malfunction
Pressure regulator control solenoid valve malfunction
Purge solenoid malfunction
PCV valve malfunction
Ignition coil malfunction
Distributor malfunction
High-tension lead malfunction
Spark plug malfunction
Leakage in intake-air system
Insufficient compression
Leakage exhaust system
MAF sensor malfunction
Engine coolant temperature sensor malfunction
TPS malfunction
Front O2 sensor malfunction
Vehicle speed sensor malfunction
Open or short circuit in wiring harness
Poor connection of connector
Vacuum hoses damaged or loose


The most common fix i have seen is the o2 sensor replacement.

[1canary]

Wow! Do you have the diagnostic plug in thingamajig? Where did you get it and how much was it please? I also have a '98 323i

[l@lo]

To Bounzing Zouls:Thank you for the information.I will try to check it out.Im no mechanic but Ill try before I take it to the shop.:thumbup:

[l@lo]

Hey 1Canary,
I bought the code reader @ Autozone and it cost bout $70.Just make sure it is OBD2.It comes in handy to read codes,but in this case I have no idea what the codes Im getting mean.

[1canary]

Hey 1Canary,
I bought the code reader @ Autozone and it cost bout $70.Just make sure it is OBD2.It comes in handy to read codes,but in this case I have no idea what the codes Im getting mean.

Thanks for the info. Will try to get one.