highpsief

First off i'll tell you a little info on the car first.. 90' Dx hatch with a d16z6 mpfi swap, mitsu 14b, stock regulator, In line bosch secondary pump, Stock in- take pump, Vortech FMU,

The problem started today when the 2nd pump took a dump and it stopped wanting to rev over 1800 to 2000, So i pull it off thinking thats the problem( maybe the pump broke and was not alowing fuel flow??) just a thought? We'll the problem is still there?? SO i go through and mess with everything with no luck? I pulled the return line off and put it in a can to see if there was any signs of possible fuel flow issue's and no problems thier... But everytime i hold it to the floor, and it just stumbles around 1800 it leans out really bad like 15:1, I let off a little and richens back up and will run fine for like 2 seconds?? then start it all over agian?? Also, Just idling it is really rich?? I just dont get it?? I pulled the CEL and it cam up with a 9,10, 14.
the code 14 made me think it was something with map sensor, But i tried 2 others?? the only other thing i can think of is a ignition problem?? BTW, It has a modded b16 obd-0 distributer...

Any help woulg be appriciated..

diulay_pkjai

Did you use a check valve? Maybe the ecu is reading boost and going into limp mode.

highpsief

I checked them, It does it without even boosting..

highpsief

ttt