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Great info. Thx

Sorry NTK. :)

Checked O2 by Viewing the live data and monitoring the voltages. They are NGK. All cylinders have good compression around 150. I suspected the intake may be leaking even though engine didn’t react with carb cleaner sprayed around it. I swapped out a manifold from a working engine and...

Thanks for the response I haven’t checked compression yet. I wasn’t leaning towards that being the problem because it was both sides of the engine. And it has new pistons and rings. I’ll check that this weekend and post results. The reading on the map sensor doesn’t indicate a leak...

I just rebuilt a 2002 KJ. All new engine internals. All new sensors (o2, map, temp, etc). Keep getting too rich codes I can’t figure out. It doesn’t misfire. The tps is working properly. The o2 sensors are reacting properly. Fuel pressure is 52 psi. I don’t know what else to do...