93 240sx auto wont run right

ONLY for ADVANCED technical discussion about the 240sx!
petey882
Posts: 6
Joined: Thu Apr 28, 2011 6:18 pm

Post

posted this in the tech forum guess i was in the wrong one..


have a 93 240sx working onfor a friend he had the head replaced and new fuel pump and filter and regulator car was running fine and then all of a sudden he was taking off from a red light andthe car died so he parked at gas station overnight went back the next day and car started and he drove it home and now it wont start at all..... i checked the ecu for codes and got code 11 which is crank angle sensor so i installed a new distributor and still no start then checked codes again still getting code 11 but also got code 13 which is coolant temp sensor so replaced it and still same thing... i tested plugs and they ar sparking when removed and plugged into wire also plugs are wet when i remove them after cranking so i know im getting fuel so i am stumped what else am i missing any help would be great


update:

ok so my buddy messed with it a little the other day and took out all of the plugs and blew the cylinders out with air and reinstalled the plugs and it fired right up but once he cuts it off it will not restart again like it is flooding and he has to pull all the plugs back out and blow it out again... also he said when it was running it had poor acceleration runs fine when idling and revs normal but once he started driving he said he could put it to the floor and it would hardly rev at all when driving any idea what thi could be


MaximA32

Post

Wet plugs = too much fuel. The crappy acceleration could be due to a vacuum leak. Recheck to make sure the FPR is doing it's job and check to make sure all connections are made properly.

petey882
Posts: 6
Joined: Thu Apr 28, 2011 6:18 pm

Post

i know it is getting too much fuel but dont know why..... it has new FPR and have checked it to make sure it holds vaccuum..... i have checked all connections i have doen injector leakdowntest i put new orings in the manifold for the injectors i have checked in jector spray pattern im at a loss here i am also on justanswer.com talking to a 25year nissan master tech and he doesnt even know whats going on with it either so any ideas u guys have i will gladly listen to but i have done almost everything i can think of to get thiscar running


Return to “240SX Technical Forum”