jesusno2 Posted March 16, 2009 Report Share Posted March 16, 2009 I'm about ready to put carbs on this motor! Single cam runs so rich I can't be in the garage with it more than about 2 min. I've swapped injectors to factory nissan ones changed the maf put coolant in it, adusted the timing. Put 3 different fuel pressure regulators on it. Nothing seems to change its fouling plugs left and right. Adjusted the tps to 0.5 volts idles like crap bellows smoke. The one thing I have yet to try is a new tps, and swapping the ecu for another I have. I have a hunch the ecu is not the case but I'm gonna try. Any other ideas fellas, wiring maybe? Injectors are pulsing and their no sticking already checked that! Quote Link to comment
Cuts metal like mad Posted March 16, 2009 Report Share Posted March 16, 2009 throwing any codes? O2 maybe? Quote Link to comment
SUN520 Posted March 16, 2009 Report Share Posted March 16, 2009 It needs more fibre ... to firm the runs up a little :lol::lol: oh sorry , i just read the thread title ...:D Quote Link to comment
jesusno2 Posted March 16, 2009 Author Report Share Posted March 16, 2009 Air temp sensor is the code now Quote Link to comment
yello620 Posted March 16, 2009 Report Share Posted March 16, 2009 If the air temp sensor isnt working, then the ecu thinks that it is -40F outside and richens the fuel. Quote Link to comment
jesusno2 Posted March 16, 2009 Author Report Share Posted March 16, 2009 Seriously though I don't care if it was in the middle of freaking antartica this will will hydro lock the cylinders its dumping so much fuel! To it even if it was -40 it wouldn't be this rich. I'm gonna try a TPS and after that ill try a different ecu if that don't work I'm puttin carbs on the mother fu'@$#* Quote Link to comment
fastdadd Posted March 16, 2009 Report Share Posted March 16, 2009 have you check to make sure the timing belt is set right Quote Link to comment
jesusno2 Posted March 17, 2009 Author Report Share Posted March 17, 2009 Timings good the car will start and stay running its just dumping to much fuel I need a tps to try and see if it fixes it mine I can totally remove it and manually twist the sob like it would be at full throttle, and it does nothing at all. On any other engine I've seen just bumping the tps outta whack the slightest bit will throw the ecu for a loop. I'm wondering if my ecu is thinking the engine is at full throttle? And the TPS is shot. Quote Link to comment
Cuts metal like mad Posted March 17, 2009 Report Share Posted March 17, 2009 if the TPS was a problem it should throw a code for it... try unplugging the tps and see if anything changes at all. Quote Link to comment
datzenmike Posted March 17, 2009 Report Share Posted March 17, 2009 With it idling touch each injector with your finger. You should be able to feel the the injector clicking open and closed. You may find one that is on or stuck open all the time. Quote Link to comment
jesusno2 Posted March 17, 2009 Author Report Share Posted March 17, 2009 The injectors are working I actually bought a noid light to see that they were pulsing like they should and they are.so the ecu is controling them. Although it sure seemed awful fast pulsing action! I then actually removed each injector and hooked 12 volts to them and they are working both sets I have are working like they should. You can physically seem them open and close. Quote Link to comment
NorCalDime Posted March 17, 2009 Report Share Posted March 17, 2009 o2 sensor is my bet. Quote Link to comment
jesusno2 Posted March 18, 2009 Author Report Share Posted March 18, 2009 Well I found something interesting. I was staring at black plug that plugs directly into the front of the TPS yesterday. I noticed the TPS has three prongs on it, and my harness only has 2 wires that plug into it? Anybody else have a ka harness that can tell me if this is correct. I'm unsure if their is a difference in harnesses year to year, or from manual cars to automatic cars. The engine was originally mated to a automatic, and the harness is for a manual trans car. So this causes me some concern. Quote Link to comment
Wharf Rat Posted March 18, 2009 Report Share Posted March 18, 2009 I'm not sure but if you think the TPS is the problem, then if you unplug it then the ECM will run a default "get you home" program and it would run better then it is now. I know that mass air sensors do. It sounds like a engine temp sensor though you may want unplug that and try it??? Good Luck WRAT Quote Link to comment
Cuts metal like mad Posted March 18, 2009 Report Share Posted March 18, 2009 every tps I have fixed (maybe 10?) has had 3 wires... maybe you got the wrong plug... on hondas, the IACV and TPS have the same plug and are commonly mixed up when doing a swap. Quote Link to comment
Icehouse Posted March 18, 2009 Report Share Posted March 18, 2009 Yeah limp home mode should be better than what you got now :D Quote Link to comment
Bone Posted March 25, 2009 Report Share Posted March 25, 2009 Any other ideas fellas, wiring maybe? Karma Maybe? How about you get together with me and send me some money ASAP for that work you were supposed to do for me 2+ years ago? What do you think? I think that would fix your KA right up personally.... I have Pm'd you a bunch of times with no response get with me and get this settled. I would prefer you handle this like a man and take care of your obligations instead of being an internet troll. Get with me in PM (as this has no place to be discussed in open forum) and get this paid and I assure you I will not interact with you again.... Back to our regular program... Quote Link to comment
datto510 Posted March 25, 2009 Report Share Posted March 25, 2009 Wacky...... Karma Maybe? How about you get together with me and send me some money ASAP for that work you were supposed to do for me 2+ years ago? What do you think? I think that would fix your KA right up personally.... I have Pm'd you a bunch of times with no response get with me and get this settled. I would prefer you handle this like a man and take care of your obligations instead of being an internet troll. Get with me in PM (as this has no place to be discussed in open forum) and get this paid and I assure you I will not interact with you again.... Back to our regular program... Quote Link to comment
72240z Posted March 25, 2009 Report Share Posted March 25, 2009 (edited) TPS is a 3 wire Bosch style plug, no doubt about that. It's the only one on that harness too so Idk how it could be mistaken. Then the nissan style plug coming off the TB is the on/off idle switch. I may be mistaken but I'm pretty sure unplugging (just) the tps doesn't throw the ecu into limp mode either. And damn someone got some financial issues going on? :-X Door bells man door bells lol........ Edited March 25, 2009 by 72240z Quote Link to comment
WagDatto Posted March 26, 2009 Report Share Posted March 26, 2009 Sounds like an O2 sensor. Cheap and easy to replace. Try that and try the air temp sensor (though I don't think that's the culprit... try it, too though!) Quote Link to comment
72240z Posted March 26, 2009 Report Share Posted March 26, 2009 All are so easy to test, I don't understand why the multimeter hasn't ruled out like all this stuff already. Quote Link to comment
sssr20det510 Posted March 28, 2009 Report Share Posted March 28, 2009 coolant temp sensor will control the fuel if its not working it will make it run rich seen it 1000 times Quote Link to comment
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