F22b1...

[C-Minus]

Greetings, Chance mi recently did a swap wit' a F22B1. I still haffi hook up da' V Tec and get the 94/97 ECU, nevertheless car still run, however... it running rich!!! So mi question is will an O2 sensor help or do I go head and get ECU and get it tuned. Gonna' get it eventually, but was wondering is that the main reason for car running rich???

[JoshM]

You'll DEFINITELY want to get the correct ECU as soon as possible. If you're running your old ECU on that motor, something bad will happen. It's not a question of "if", it's "when".


If you're o2 sensor is old, it wouldn't hurt to get a new one also.

[tear2wo]

Greetings, Chance mi recently did a swap wit' a F22B1. I still haffi hook up da' V Tec and get the 94/97 ECU, nevertheless car still run, however... it running rich!!! So mi question is will an O2 sensor help or do I go head and get ECU and get it tuned. Gonna' get it eventually, but was wondering is that the main reason for car running rich???

im in the same situation your in . i have a f22b1 with the f22ax ecu. replaced the o2 sensor and im still wasting a lot of gas. in 1 day i went through half a tank just driving about 30 miles.

i just ordered a POA ecu. check on ebay. i got mine for 85$ shipped. ill let you know if it solves my problem when it comes in the mail

[trurider69]

my egr and a bunch of seals were leaking and only got 200 hpg sound like we should all do so stuff to these cb7/cb9 put that ecu in and hope you get it running better than my wagon

[Darkcloud]

You'll DEFINITELY want to get the correct ECU as soon as possible. If you're running your old ECU on that motor, something bad will happen. It's not a question of "if", it's "when".


If you're o2 sensor is old, it wouldn't hurt to get a new one also.

Nothing willl happen if you run a the f22a ecu with a f22b1. Thats how I'm running mine until I get chipped p06 or p28. The only thing that will happen is no vtec.


As for the car running rich,have you checked your timing it could be advanced or the O2 sensor is bad. I just needed a new o2 sensor and I was fine

[deevergote]

Agreed. The PT3 or PT6 running the F22B1 won't hurt anything. At least not for quite a while. It won't be right, but it will work.

The P0A is the best thing to run if you can get one, though. The proper ECU is always best.

[tear2wo]

Nothing willl happen if you run a the f22a ecu with a f22b1. Thats how I'm running mine until I get chipped p06 or p28. The only thing that will happen is no vtec.


As for the car running rich,have you checked your timing it could be advanced or the O2 sensor is bad. I just needed a new o2 sensor and I was fine

i replaced my o2 sensor. and im still getting shitty gas mileage. so it must be the ecu .. ill let u guys know how my gas mileage is after i change the ecu. hopefully it gets better because im putting 20$ of gas in every two days.

edit ** ill be replacing my wires, cap and rotor and fuel filter to make sure everything is up to date too ..

[deevergote]

If the CEL isn't solid, and you're not getting any error codes, the ECU should be fine.

What o2 sensor did you use? If it's a Bosch sensor, it may not be working properly. They rarely do. You need NTK or Denso.

The cap, rotor, plugs, and wires can affect fuel economy as well. Cap and rotor can usually be cheap autoparts store stuff... I've never had a problem, nor have I heard of a problem. Plugs should be NGK or Denso. Wires should be NGK (larger aftermarket wires have nothing to offer you, and some function far worse than NGK)

[tear2wo]

If the CEL isn't solid, and you're not getting any error codes, the ECU should be fine.

What o2 sensor did you use? If it's a Bosch sensor, it may not be working properly. They rarely do. You need NTK or Denso.

The cap, rotor, plugs, and wires can affect fuel economy as well. Cap and rotor can usually be cheap autoparts store stuff... I've never had a problem, nor have I heard of a problem. Plugs should be NGK or Denso. Wires should be NGK (larger aftermarket wires have nothing to offer you, and some function far worse than NGK)

well i had a code 1 (primary o2 sensor) and 43 (fuel supply) . i replaced the o2 with a bosch o2 (got a hook up at autozone ) and now the 43 code is gone but im still getting code 1. i was thinking that it could be lighting up because the f22 uses two o2 sensors and not 1 like the f22b1 .

[foamypirate]

well i had a code 1 (primary o2 sensor) and 43 (fuel supply) . i replaced the o2 with a bosch o2 (got a hook up at autozone ) and now the 43 code is gone but im still getting code 1. i was thinking that it could be lighting up because the f22 uses two o2 sensors and not 1 like the f22b1 .

F22Ax's only use 1 sensor.

[deevergote]

F22 what?

If you have the F22A in your car, it uses one o2 sensor. All OBD1 cars use 1 o2 sensor.

Bosch does not work properly. Plain and simple. If you're getting poor fuel economy, that is very likely to be the cause. Replace it with NTK or Denso, and you'll find that your mpg will increase.

Everyone buys Bosch because it's cheap, ignoring all advice against them. "Bosch invented the o2 sensor, and it's for our car... it has to work."... but it doesn't.

[tear2wo]

F22Ax's only use 1 sensor.

F22 what?

If you have the F22A in your car, it uses one o2 sensor. All OBD1 cars use 1 o2 sensor.

Bosch does not work properly. Plain and simple. If you're getting poor fuel economy, that is very likely to be the cause. Replace it with NTK or Denso, and you'll find that your mpg will increase.

Everyone buys Bosch because it's cheap, ignoring all advice against them. "Bosch invented the o2 sensor, and it's for our car... it has to work."... but it doesn't.

are you guys sure that the f22ax only has one o2 sensor? right now i have one o2 sensor on the downpipe (the one i replaced) and then right after the downpipe there is another o2 sensor . but this one has had its wires cut so im guessing the previous owners did that since the f22b1 only uses one. i was going to take it out but then id have a hole in my exhaust.

urgh now i cant even return the bosch sensor because i had to splice it into the plug for the old o2 since the plugs didnt match up . the old o2 was probably for a f22ax n i bought one for the f22b1 .

[deevergote]

are you guys sure that the f22ax only has one o2 sensor? right now i have one o2 sensor on the downpipe (the one i replaced) and then right after the downpipe there is another o2 sensor . but this one has had its wires cut so im guessing the previous owners did that since the f22b1 only uses one. i was going to take it out but then id have a hole in my exhaust.

urgh now i cant even return the bosch sensor because i had to splice it into the plug for the old o2 since the plugs didnt match up . the old o2 was probably for a f22ax n i bought one for the f22b1 .

So you spliced your harness, too? Nice.

The F22A has one o2 sensor. There are two locations for it, depending on the version of the F22A... but it only uses one o2 sensor. Trust me. I run the site dedicated to the model... I know this for an absolute fact.

Replace the Bosch sensor with an NTK or Denso sensor that will work properly. And hope you didn't alter the resistance of the wiring too much with your splicing, or it may never function properly again.

[tear2wo]

So you spliced your harness, too? Nice.

The F22A has one o2 sensor. There are two locations for it, depending on the version of the F22A... but it only uses one o2 sensor. Trust me. I run the site dedicated to the model... I know this for an absolute fact.

Replace the Bosch sensor with an NTK or Denso sensor that will work properly. And hope you didn't alter the resistance of the wiring too much with your splicing, or it may never function properly again.

no i didnt splice the harness. my o2 was set up weird. the damaged o2 was plugged into the same plug that came on the new o2. so when i went to plug in the new o2 to the harness , it was the same exact plug. i had no choice but to cut off the plug off the old o2 and splice it on the new 1.



the plug shown in this pic is what is coming from the harness. dont know why

[deevergote]

Ah, ok. Good. That's the way it should be done... always splice the part going on if splicing is necessary. NEVER splice your car's wiring if you can help it.