evo8 ecu no o2?

[duh2150]

alright so I got my turbo in, using evo8 ecu, with boomslang harness, i checked all the pins everything seems fine, but I'm still throwing 5 o2 codes, so for some reason the car doesnt find the o2 sensors, do I have to buy evo8 o2's or are the pins still wrong?

also I recently replaced the clutch and flywheel, done everything right, have some clutch chatter only have 31 miles on it so far, I have read this is normal if you have the act 2100 and ACT flywheel, I dont know how true this is, and didn't have chatter with the old flywheel and clutch

I had some knock issues, but I just drove it and now it must have fixed itself, codes are still on

Thanks

[mko]

post the codes, but it could be a wiring flaw. Make sure you havent swapped grounds for the signal and heater. These are different. You want to monitor the voltage at the signal wire. With the car warmed up it should be around 0.5 volts and constantly fluctuating

As for the clutch chatter, did you lube the surface of the TOB and the shaft?

[qnz]

maybe your o2 is bad

[duh2150]

p0134 Bank 1 Sensor 1 No activity
P0130 Bank 1 Sensor 1
p0136 Bank 1 Sensor 2
P0135 Bank 1 Sensor 1 Heater circuit
P0141 Bank 1 sensor 2 Heater circuit

the o2s might be why my car is running like crap, feels like its missing

i used the RRE evo8 pinout with my 2001 Galant service manual, i own a 2000, hopefully there isn't a difference between 2000 and 2001 models ecu wise

,and yeah I lubed the TOB but not a lot, because I didn't want the grease to sling and get onto the clutch, and cause more problems

and for some reason i can get evoscan to work but cant get ecuflash to work to get the rom, says an error

[qnz]

evoscan can work on most cars. i use it to pull codes from my dads lexus even.

If ecuflash doesnt work, it could be you have some wires crossed up

[duh2150]

I donno im chasing myself in circles now does anyone have the right pin outs I checked over like 30 times and it sill giving me trouble


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[mko]

p0134 Bank 1 Sensor 1 No activity
P0130 Bank 1 Sensor 1
p0136 Bank 1 Sensor 2
P0135 Bank 1 Sensor 1 Heater circuit
P0141 Bank 1 sensor 2 Heater circuit

Thats you front o2 sensor. Measure the ohms at the sensor itself. the heater should have 3-10 ohms and the signal wires should give about 13k, I think, Im not sure tho, Ill check again

[Stewi]

evo pinout









galant to evo pin comparison chart

[qnz]

The sensor 1 + sensor 2 would make me believe that it was wiring and not the sensor. What are the chances both sensors fail at the same time?

[duh2150]

...wth, so what stewi put up is right

http://roadraceengineering.com/evo/t...-ecuwiring.htm

so pin 60 on this pinout is actually nothing and I have to put both heaters on pin 54 on the evo ecu (splice it in), front and rear according to stewi's, pinout if I'm reading it correctly

stewi's says NA for pin 60
RRE says pin 60 is o2 heater front

so both front and rear go to 54

so I should be following stewi's diagram, so pretty much the wires are messed up,

correct? is so I'm printing this all out and moving wires around, also under the 30-1313 and 30-1313U, it says stuff line injector #8 ect. do I have to worry about whats in that column

[Stewi]

...wth, so what stewi put up is right

http://roadraceengineering.com/evo/t...-ecuwiring.htm

so pin 60 on this pinout is actually nothing and I have to put both heaters on pin 54 on the evo ecu (splice it in), front and rear according to stewi's, pinout if I'm reading it correctly

stewi's says NA for pin 60
RRE says pin 60 is o2 heater front

so both front and rear go to 54

so I should be following stewi's diagram, so pretty much the wires are messed up,

correct? is so I'm printing this all out and moving wires around, also under the 30-1313 and 30-1313U, it says stuff line injector #8 ect. do I have to worry about whats in that column

My conversion chart was specifically made for people using AEM EMS which doesnt utilize any o2 heaters since your using a wideband which the sensors heater circuitry is is built in and controlled by the wideband itself and not the ECU. You need to pay attention to both charts, the excel spreadsheet says NA but pin#60 on the other chart (EVO) says o2 heater front and pin#54 is o2 heater rear. You dont need to worry about where it says injector#9 or any other# injector, that just lets you know that on an AEM EMS that pin is pre-configured for that function.

[duh2150]

oh I see, I'm going to have to check the pins from the galant side of the harness, I didn't have the colors of the wires when I was matching it up only pin numbers and the book, I'll recheck the color of the wires, I think the service manual was kinda vague in the area, I'm going to have to check back

[duh2150]

I've been checking the pins this morning against the RRE what stewi posted and service manual, everything is wired up fine so far, galant pins 48 and 42 the grounds I couldn't find that in the service manual but I'll take the wire straight from the Evo 8 ecu to ground and skip where I connects to the galant side of the harness

Pin 57 o2 sensor ground... If that's the ground for all the o2's this might be my problem, I will be checking that pin as soon as I get home, I thought the o2 sensor was grounded to the pipe and to the car, but it should be working because the gauges work pin 92 from the evo ecu


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[duh2150]

so i pulled the harness, plugged it back in no codes.. drove it around perfect, until i stoped turn it off and restarted it then codes again this one with 1 less code, do i need to buy like evo 8 o2 sensors or something, try to use the spark plug fouler method?

P0130 Bank 1 Sensor 1
p0136 Bank 1 Sensor 2
P0135 Bank 1 Sensor 1 Heater circuit
P0141 Bank 1 sensor 2 Heater circuit

[duh2150]

I replAced my front o2 same stuff I must have a bad ground, the voltage coming from the o2 is .3 volts and should be at .8 volts , so I'm going to move the original o2 to the front right into the turbo o2 housing


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[allrice4g64]

The voltage on the 02 sensors should fluctuate from like .01 to .09 (.09 being rich and .01 being lean) The 02 sensor should be in the 02 housing. Rember when your looking at the pinouts its just the opposite of when your looking at your ecu.....

[allrice4g64]

According to my evo 8 pinout.. pins 26 and 13 are system grounds pin 40 is iat,crank,cam sensor ground, pin 54 is rear o2 sensor heater and pin 60 is front 02 sensor heater. pin 76 is the signal for the front 02 sensor and pin 75 is the signal for the rear o2 sensor. pin 92 is the ground for the 02 sensors.

[duh2150]

you got a 7g galant,i know I have my wires the right way, I checked them so many times, I'm just getting the same voltage .3 volts thats it, I got it down to where I only have 2 codes p0135 and p0141 both heater circuit malfunction (front and rear), but expecting the codes to come back as soon as it enters closed loop, i think this ecu is just screwed

[duh2150]

p0136 Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2)
p0132 O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor1)
P0135 Bank 1 Sensor 1 Heater circuit
P0141 Bank 1 sensor 2 Heater circuit

since i moved the front o2 to the front

[allrice4g64]

Just because i have a 7g galant doesnt mean the pinout on a evo 8 ecu is differnt. Those are the right pins. Now 7g to evo 8 is is differnt then 8g to evo 8 ecu but the evo 8 pinout is right regardless.