I recently bought a 97 accord SE with a 2.2 liter 130 horsepower F22 B24 engine, which was overheated and cooked. The replacement engine I was given was from a 96 accord dx, F22 B23.
One week after the install, the engine started running poorly, giving codes for tps, iac, map sensor, and both O2 sensors. after changing parts with other used parts from the old engine, codes remain for IAT and TPS and Bank1 sensor 2 O2 sensor.
One call to the local honda service dept and they informed me that my car was set-up to California emissions standards and the new engine was not. He said the ECM is getting readings that it doesn't like and it is substituting values that ought to work, but don't.
All the parts supplier can tell me is that the intake and "some" of the electronics will need to be changed on the KA engine that was placed into this car.
Can someone tell me exactly what needs to be changed to rectify the problem??

 

I would check the engine grounds. There is an important ground on the firewall near the brake booster. I would check as many grounds as you can on the engine bay.

If the engine was running fine one week, then started running poorly, then I would guess that the sensors on the new engine are working fine.

 

The dealer says the problem lies in the California version of the ECM is getting readings that it is not expecting from the non-california sensors, and then substituted the values after a hundred miles.
I will check the grounds though.
Thanks

 

The engine actslike there is a "jake brake" on it. As you accelerate, it works well enough, but once you reach speed and "level out' the engine acts like you cut the ignition (or fuel) until you put your foot down just enough to accelerate again. Cruise control does not turn on. At 70 mph, the engine is under just enough constant load that the engine keeps going, but any speeds less than thatwill "cut out" once the load on the engine decreases slighty.
I thought it was a vaccuum leak, bad IAC valve, or a fuel pressure issue, but it isn't either.

 

I you sure of those engine designations? I've never heard of an F22B23 or F22B24. An F22b2 is the 5th generation car non-VTEC engine while the F22B1 is VTEC. I think there was a non-USDM engine (Australian?) that was designated F22B3 but it's unlikely you have it if you're in the US.