My b16 is only running on 3 cylinders and it has good compression on all four cylinders and good spark. The car floods out the plugs after driving for about 15 minutes. It also emits alot of white smoke which does'nt go way after warming up. I do not smell antifreeze either. Also when you pull the vacuum line off the FPR it does'nt send my fuel pressure higher. I have replaced the FPR and put a new new head gasket on it and shaved the head and done a compression test on the head which checks out fine. The valve clearance is Ok on all the valves also. What can be wrong?? I didnt put a new intake gasket on it because I had a reusable Hondata gasket. Maybe this is my problem. Any ideas??

 

When I pull the spark plug wires off the first 3 cyl each time my engine bogs down but when i pull the 4th wire off the engine does nothing. After driving for about 15-20 minutes and you turn the car off it will barely start and when you check the plugs the first 3 are wet and the 4th one looks brand new. I had my injectors sonic cleaned also

 

Swap the injectors around to see if #4 is bad.

The fuel return line to the tank may be blocked-- that would make the fuel pressure too high (limited only by the relief valve in the pump) and unresponsive to the FPR.

 

I have already tried both of those and I just new one of those would fix it but it didnt. I switched injectors around that didnt faze it. Yesterday I dropped the fuel tank down and put a new return line on it and left the tank down to make sure it wasnt getting blocked or kinked in anyway and it didnt help. could it be maybe map sensor related or the canister beside the map sensor.

 

could be a bad dizzy cap or plug wire on number 4