toothpicsk8

i swear to god my car hates me, i was driving home in the rain everything going ok but i noticed when i started it the tack was jumping from idle to 2 grand back to idle, my friends acura did this when it was cold so i thought nothing of it, driving it home ran ok, got 20 seconds from my house and put put put puuuhhhh.
started it back up it would stall if i didnt give it gas and it would rev past 2 grand it seemed like maybe ecu got wet or somethign shorted out, but i had to get it home on using almost no power band. and when i helf it to the floor it would like rev to 2 then come down to 1 then rrev to 2 and so on got it homegot it in the driveway and it started revving alil high so i just said screw it and came inside.
if u have any ideas on what the problem is now , now that i got done finding a simmilar problem when the injector wasnt closingit was staying wide open and making the car loose all power. thanks

WAYNE88N/A

If you think it still may be an injector problem, swap the secondaries into the primaries' positions (assuming they're both the same flow rate). May also be a good idea to check your voltages from the injectors at the ECU- both primaries should be at exactly the same voltages during different throttle conditions. If not, it may be an ECU problem (the internal drivers) instead of an injector malfunction...

If you have a Fluke or similar meter that can display duty cycles, it would help even more to diagnose any differences in ECU drivers operation...

You sure it's nothing simple like a clogged fuel pump filter?

toothpicsk8

maybe, but it usually runs ok if i dont rev it high, and if ui dont let the downshift slow me down, now if i took it to a shop , liek my school shop and hooked it up the the computer would it tell me whats wrong or will it not even work cuz its so old.

toothpicsk8

i took it to some guy about a different problem and he asked me if my ecu was getting wet and i didnt think it was but maybe it is and it making it malfunction like that , could it getting wet do that , btw i noticed somethign when i was sitting there watchign the tac go back and forth , that when i reved it up and it stops and drops back down i noticed that the lights dim when that happens. i also noticed a shortage of power when i turned on the car and turned the windshield piper,lights,and the back windshield defroster on, i tried to roll backwards in reverse and see if i could get it past 2,000 rpms but it kinda like hits it and stopsand bucks back to rpm and i can get it past 2,000.

toothpicsk8

it could bea clogged fuel pump filter, but then again it could be anythign that relates to electronic and, fuel because my moter dfinatly isnt blown, i must have compression when i run it it runs fine,oh wait, i have a flex pipe on there now replacing the converter, does that hose that goes to the cat have to be plugged or hooked up to anythign special to make it run??

powrdby13B

was the car revving? or was the tach just jumping around for no reason? because that tends to happen when there's not enough power to make it work right...

mtnpass

Could be a charging issue, tach will jump and be eratic if alt or elec system has failure

toothpicsk8

no it wasnt revving it would hit 2 grand and just drop like it had fuel cut or somethign, and i have a brand new alternator.