f22b1 swap ??????

[rx7-boss]

i never seen in any of the write ups about this swap if which engine harness was used?? f22a1 or f22b1.... can someone clear this up for me because my car is running like CRAP!!

[deevergote]

F22A1 harness is easiest, with the addition of necessary wires. There are no swaps in the CB7 that require a full harness change (though it IS one way to do it).

How is it running like crap?

[visualpoet]

Did you use the b1 ECU?

[TheFirstNutZo]

I am assuming that you currently have an F22A1 and are looking to replace it with an F22B1 engine.

First of all, most likely the reason there aren't write-ups is because the F22B1 is an inferior engine design (bad head flow characteristics). Very few performance communities write up how to make your car crappier.

With that being said I think the 96+ B1 is OBD2, while the 94-95 B1 is OBD1. So depending on which engine you have, you might need to convert the engine to OBD1. Also, the B1 is a VTEC engine so you'll need the ECU from the B1 or a P28 (or equivalent tuned ECU w/ VTEC enabled) to utilize the VTEC on the B1 engine.

Someone else can chime in here with more detailed info if they like. If you want some better advice, I highly recommend that you FULLY explain what you have, what you are trying to do so that people know what's going on in order to best help you. Information like:

Current engine (F22A1/4/6, year, mileage, whats wrong with it)
Replacement engine (F22B1/2, year, mileage, whats right with it)
Current/replacement transmission(s)
Reason for the swap to begin with
How far along you are with the swap, and what parts you have to perform the swap (i.e. do you have the B1 ECU?)
What "my car is running like CRAP!!" means

Hopefully we can get you up and running soon

[deevergote]

I am assuming that you currently have an F22A1 and are looking to replace it with an F22B1 engine.

First of all, most likely the reason there aren't write-ups is because the F22B1 is an inferior engine design (bad head flow characteristics). Very few performance communities write up how to make your car crappier.

With that being said I think the 96+ B1 is OBD2, while the 94-95 B1 is OBD1. So depending on which engine you have, you might need to convert the engine to OBD1. Also, the B1 is a VTEC engine so you'll need the ECU from the B1 or a P28 (or equivalent tuned ECU w/ VTEC enabled) to utilize the VTEC on the B1 engine.

Someone else can chime in here with more detailed info if they like. If you want some better advice, I highly recommend that you FULLY explain what you have, what you are trying to do so that people know what's going on in order to best help you. Information like:

Current engine (F22A1/4/6, year, mileage, whats wrong with it)
Replacement engine (F22B1/2, year, mileage, whats right with it)
Current/replacement transmission(s)
Reason for the swap to begin with
How far along you are with the swap, and what parts you have to perform the swap (i.e. do you have the B1 ECU?)
What "my car is running like CRAP!!" means

Hopefully we can get you up and running soon

Aside from the fact that I know he already has the engine installed... the fact that it's running like crap is a pretty good hint that the F22B1 is in and running. He is well aware of how poor of a performance engine it is (notice how I'm refraining from that usual comment myself...)

There are 2-3 decent writeups on the F22B1 install on this forum alone. Also, the guys on CD5tuner.com might be able to offer more assistance on this engine, as it is stock in their cars.


You are correct about the OBD1/OBD2 thing, though. If this was an OBD2 engine, and not converted to OBD1 (injectors, distributor, ECU, etc...) then that would certainly cause problems.

As said, we have to determine what "running like crap" means before we can help in any way.

[TheFirstNutZo]

the fact that it's running like crap is a pretty good hint that the F22B1 is in and running. He is well aware of how poor of a performance engine it is (notice how I'm refraining from that usual comment myself...)

I was assuming that since he didn't know how to wire the engine in the vehicle, he wouldn't have already put it in his car. I was also assuming that since it was running like crap, it meant that he was really tired of his current engine and was in a rush to replace it.

But you know what the say about assumptions

I started writing my post when there were 0 replies to his, but once I saw yours I was curious why you didn't mention the head on the B1. Makes a lot more sense now.

EDIT: Here are a few links on the F22B1 swap:

http://www.cb7tuner.com/vbb/showthread.php?t=138663
http://www.cb7tuner.com/vbb/showthread.php?t=118444

[rx7-boss]

all crap aside and pointless argument over the use of an engine in MY car.. some of you may know from my other posts that while pulling out the a1 that had burnt valves, and just had this motor laying around. from a buddies h swap. my harness got tourn too shreds on the driver side, including injector wires. now after the best re wiring i could do and with the b1 ecu it sounds like a two stroke dirt bike when reving and just shaky and well, just not right.. lol im obviously thinking my problem lyes within the wiring being screwed. but my questions come down too.. 1.. the harness being used(already answered) 2.. would order in which the injector signal fire be different considering the firing order is different? 3.. IF so<- should the correct ecu for the engine be sending the correct signal to the injectors??


thanks for your guys' help and thought, they are always of much help. if i get the answers i think im goin too get then ill just be re running the injector wiring..

[deevergote]

I'm not sure I understand what you're asking about the injector wiring and ECU... it could just be that I'm tired, and I've been staring at this computer for far too long tonight...

Which ECU are you running?

[TheFirstNutZo]

He's running the B1's ECU. Not sure which variety.

Sounds like maybe one of the injectors aren't working? Have the engine running and disconnect the spark plug wires one at a time (then plug them back in) and see if one of the spark plugs being disconnected DOESN"T change the way the car sounds. Then check the wiring on that injector.

I am not certain whether Honda fuel injection is batch or sequential fire, which I think is what your last two questions revolve around.

[trailerparkscb7]

i have an f22b2 and i know its not the b1 but i was able to use the f22a1 intake manifold that has all of the original sensors i would swap the intake manifolds and see what that does

[deevergote]

I believe the B1 intake manifold doesn't share a bolt pattern with the F22A... I may be wrong, though. It's never been discussed as a manifold swap option.

[92smokeaccord]

I believe the B1 intake manifold doesn't share a bolt pattern with the F22A... I may be wrong, though. It's never been discussed as a manifold swap option.

the im's can be swaped and work.but i think what he is asking isthe injector connecters.he is asking if they were mixed, like insted of the first cylinder injecter being connected in the first injecter it would be connected to any other one. would this mess up the way it is running.i hope this maks sence.

[deevergote]

Ah, yeah, I see what you mean...
If the injector plug for cylinder 1 was plugged into the injector for cylinder 3, it'll fire when 1 should fire.

[92smokeaccord]

Ah, yeah, I see what you mean...
If the injector plug for cylinder 1 was plugged into the injector for cylinder 3, it'll fire when 1 should fire.

but if its in 2 or 4 it will mess up right?

[deevergote]

If the plugs are connected to the wrong injectors, it will mess up regardless.