Nismojunky Posted November 15, 2009 Share Posted November 15, 2009 okay im still trying to figure this problem out, so far ive put a new O2, plugs, wires and Cap, new maf wireing, i still have a missfire and its running really rich, im only getting 70km to a quarter tank of gas and its really starting to piss me off any more ideas? Link to comment Share on other sites More sharing options...
adamzan Posted November 15, 2009 Share Posted November 15, 2009 Did you get rid of those ****** champion plug wires? Bosch or NGK are the best for these rigs. Link to comment Share on other sites More sharing options...
Tungsten Posted November 15, 2009 Share Posted November 15, 2009 maybe its a timing problem Link to comment Share on other sites More sharing options...
Precise1 Posted November 15, 2009 Share Posted November 15, 2009 I am assuming you ran the ECU for problem codes already. Does it miss all the time or just under load? Have you checked the temperature sensor for the ECU yet? There is a thread about it, let me look... B Link to comment Share on other sites More sharing options...
adamzan Posted November 15, 2009 Share Posted November 15, 2009 When he was up here to do my BL and I was sitting in his truck waiting for him, you could feel it miss randomly, also his idle is kinda funky. I told him coolant temp sensor but I have no clue if he checked it yet. Robb, have you checked it yet? Link to comment Share on other sites More sharing options...
Precise1 Posted November 15, 2009 Share Posted November 15, 2009 Here is a link... http://www.nissanpathfinders.net/forum/index.php?showtopic=24592 B Link to comment Share on other sites More sharing options...
JesseLivingston Posted November 16, 2009 Share Posted November 16, 2009 Here's a tip that may lead somewhere. When it's dark out pop you're hood and start the truck. I was having a similiar problem until I did this and could see the high voltage light show going on. Cheap wires grounding out anywhere they could!!! Also check you're grounding, distributor for carbon build up. If you're running rich you're NOT firing. Check each plug for spark. Also start truck and pull one plug at a time (wear gloves if you have cheap wires). I f you pull a plug and the motor doesn't change it's tune, then that's your problem plug! Good luck. Link to comment Share on other sites More sharing options...
Nismojunky Posted November 16, 2009 Author Share Posted November 16, 2009 didnt check the coolant sensor yet i wass wireing in new maf wireing and cut my hand open so im going to have to do all this tomorrow, w00t w00t 7 sitches in my thumb best of all the freezing didnt work so i felt all of it Link to comment Share on other sites More sharing options...
Nismojunky Posted November 16, 2009 Author Share Posted November 16, 2009 misfire is gone it ws the maf it is still running really rich tho im trying to find my backup coolant temp sensor to swap that in i dont think its my wires i took wd40 and sprayed them down and the cap down and it didnt affect the idle Link to comment Share on other sites More sharing options...
Zibi Posted November 17, 2009 Share Posted November 17, 2009 Running rich is a symptom of cracked manifolds. Link to comment Share on other sites More sharing options...
Nismojunky Posted November 18, 2009 Author Share Posted November 18, 2009 Running rich is a symptom of cracked manifolds. intake or exaust? because i have headers for my exaust i ran the codes yesterday i got 23 Idle Switch 45 Injector Leak 51 Injector Circuit 12 Air Flow Meter/Mass Air Flow Sensor. Link to comment Share on other sites More sharing options...
adamzan Posted November 18, 2009 Share Posted November 18, 2009 Is your tailpipe black? Also I've gotten that injector leak code before but after doing the o2 and cleaning the maf, and changing the cat's it never came back. Link to comment Share on other sites More sharing options...
Nismojunky Posted November 19, 2009 Author Share Posted November 19, 2009 yes my pipe is black, its got a brand new o2 few weeks old new cat fem months ago and maf is clean Link to comment Share on other sites More sharing options...
Terrano1992 Posted November 19, 2009 Share Posted November 19, 2009 23 Idle Switch 45 Injector Leak 51 Injector Circuit 12 Air Flow Meter/Mass Air Flow Sensor. A couple of errors caused by damaged harness/connectors and/or bad ground? Very common failure for old cars... Clear all error codes, drive your truck (10-20 miles will be enough) and read codes again. Link to comment Share on other sites More sharing options...
Nismojunky Posted November 19, 2009 Author Share Posted November 19, 2009 hmm ill have to do this later and then check all the grounds Link to comment Share on other sites More sharing options...
Nismojunky Posted November 21, 2009 Author Share Posted November 21, 2009 23, 45, 51 again Link to comment Share on other sites More sharing options...
Terrano1992 Posted November 22, 2009 Share Posted November 22, 2009 23, 45, 51 again Look at 1994 FSM and try to resolve problems caused codes 23 and 51, using procedures described in manual. Pages EF&EC-103..105 (Throttle Position Sensor) and EF&EC-111..112 (TPS Idle Switch), then EF&EC-108..110 (Injector circuit). If code 45 (Injector leak) will not gone after resolving "23" and "51" problems, use procedure described at pages EF&EC-106..107. Link to comment Share on other sites More sharing options...
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