code 31

[95lshatch]

ive got a 95 hatch with a b18b1 swap and its a 5 speed but i have cel on and i checked the code and its saying i have a automatic trans b signal how can this be?

 

[Esotericimage]

are you using an automatic ECU? sounds like it to me.

 

[95lshatch]

i dont think so the numbers on it are 37820-p75-a01 and under those are 830-147127

 

[Esotericimage]

its a P75 auto the A01 is automatic if im not mistaken.. but if thats the only code your throwin, youll be fine.. Anyone want to chime in cuz im not 100% on the ECU and my car is 20 blocks away to check.

 

[95lshatch]

its not the only code im throwin a code 41 to wich is the primary oxygen heater sensor.my car only has 1 o2 sensor and it is brand new so i have no idea whats going on with this thin could this be the reason my car is running like s**t?

 

[Esotericimage]

Why dont you try and chip it.. ur tuner can tune your ride w/o O2 sensors <crome> and can be optimal for your engine.

 

[95lshatch]

i dont know if i want to keep the ls.i want to do an all motor gsr but need this thing to pass emissions.

 

[Esotericimage]

oh boy.. ur talking a whole different game now.. I dont have emissions in my state so IDK anything ab making it legal.

 

[95lshatch]

yea im gonna move there then lol.

 

[93turbo16]

The P75 A01 is a manual P75 ecu. Are you sure you are reading the codes properly?

 

[95lshatch]

im not completly sure my buddy helped me cause i wasnt sure how to read the blinks but will double check tamarrow now that i know how to read them.

 

[Esotericimage]

was the O2 sensor a universal or OE type.. ive heard people having problems with the cheap ones. Or they wire them wrong cuz they dont come with the connector. I know the OE is pricey, but they do work better IMO.

 

[95lshatch]

the o2 sensor was from napa and it pluged right in.

 

[95lshatch]

ok so i fell like an idiot now lol.i read the codes on my own now that i know how to read the blinks and it blinked one long one and the a pause so that was a code 10 right? so does that mean i have a bad sensor?

 

[Esotericimage]

I just plug in a diagnostic computer and it tells me what codes are thrown.. IDK the old skool method.. but here ya go..

OBD-1 trouble codes

Trouble code----Circuit or system-------------------Corrective action

Code 0 --------------Faulty PCM-------------------------------Check the PCM electrical connector. If no loose connectors
are found, have the PCM diagnosed by a dealer.

Code 1 --------------Oxygen content---------------------------Check the O2 sensor, heater and the O2 sensor circuit

Code 3 & 5---------Manifold Absolute Pressure------------Check the MAP sensor and circuit

Code 4 --------------Crankshaft position sensor(CKP)------Check the CKP sensor and circuit

Code 6 --------------Coolant temperature---------------------Check the coolant temp sensor and Circuit

Code 7 --------------Throttle angle(TPS)----------------------Check the TPS and circuit

Code 8 --------------TDC Position----------------------------- Check the TDC sensor and circuit

Code 9 --------------No.1 cylinder position(CYP)------------Check the CYP sensor and circuit

Code 10-------------Intake Air Temp(IAT)--------------------Check the IAT sensor and circuit

Code 12-------------Exhaust Gas Recirculation---------------Check the hoses, the EGR valve lift sensor and the EGR valve
System

Code 13-------------Barometric Pressure----------------------Have the vehicle checked at a dealer service repair shop.

Code 14-------------Idle Air Control(IAC) valve------------Check the IAC valve and system

Code 15-------------Ignition output signal--------------------Check the ignition system

Code 16-------------Fuel injector-------------------------------Check the fuel injection system and fuel injectors

Code 17-------------Vehicle speed sensor---------------------Check the vehicle speed sensor and circuit

Code 19--------------Lock-up Control Solenoid--------------On automatic transaxle, check the solenoid

Code 20--------------Electronic load detector(ELD)---------Check the ELD system

Code 21--------------Variable Valve Timing and------------- ??????????
Valve Lift Solenoid


Code 22--------------Variable Valve Timing and-------------????????????
Control pressure switch

Code 23--------------Knock sensor-----------------------------Check the knock sensor and circuit

Code30--------------A/T FI signal A---------------------------Have the vehicle checked at a dealer or a repair shop
(automatic transaxle vehicles)

Code 41 & 48 -----Oxygen sensor heater--------------------Check the heater for the proper voltage signal

Code 43--------------Fuel supply system----------------------Check the fuel pressure, fuel pressure regulator. Also check
For any vacuum leaks.

 

[95lshatch]

thanks man thats a big help.