hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 Get rid of that BA10, you should be able to find an AX15. What gears? 3.54 or 3.07? Link to comment Share on other sites More sharing options...
JMO413 Posted March 9, 2019 Share Posted March 9, 2019 So we have matching injectors and throttle body. I have a NOS O2 recently replaced. Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 The O2 is the third one in 10 days, had initially ??? O2, put in the NTK, lasted 2 days, then another NTK, 4,5 days, now the Bosch a couple of days, so far so good Link to comment Share on other sites More sharing options...
JMO413 Posted March 9, 2019 Share Posted March 9, 2019 3.07. AX15 and regear are on the to do list. For now I just plan on driving it. After completing all of Cruisers tips the truck really drives quite nice. 5th grear is useless unless I plan on driving across Nebraska or Kansas. Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 The AW 4 the Dana 44 with Trac Loc, and 4.11 thick gears, make driving, the Eliminator easy/peasy, I'm spoiled, not a lot of freeways on the island, but we do have some challenges with lava roads and pretty severe grades. Climbs like a Billy goat. Link to comment Share on other sites More sharing options...
JMO413 Posted March 9, 2019 Share Posted March 9, 2019 Sounds like fun. I will check mine again tomorrow and report back. Link to comment Share on other sites More sharing options...
JMO413 Posted March 9, 2019 Share Posted March 9, 2019 LTFT stayed stored at 90. Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 Th Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 This cam out of the Snap-On MT2500 Jeep Guide Link to comment Share on other sites More sharing options...
Ωhm Posted March 9, 2019 Share Posted March 9, 2019 Good read. Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 Link to comment Share on other sites More sharing options...
hakukamana Posted March 9, 2019 Author Share Posted March 9, 2019 746's are flowing @ 20.2 lbs/hr and 212 cc/min. Stock injectors are flowing @ 21.5 lbs/hr and 240cc/min. These are or should be based on 43.5psi fuel pressure or 3 bar. Could the ECU be trying to compensate for flow from the 746's. What funny is the calculator says both stock and 746's are providing more fuel than required. Link to comment Share on other sites More sharing options...
Ωhm Posted March 9, 2019 Share Posted March 9, 2019 What seems odd to me is the loss of 1.3 lbs/hr should cause LTFT (go above 128) to increase INJ PW time (ms). But so many other factors come into play here. Throttle bodies, exhaust systems etc, etc. But O2S switching (RICH LEAN) will always try to find 14.7 to 1 (stoichiometric fuel ratio). Link to comment Share on other sites More sharing options...
JMO413 Posted March 10, 2019 Share Posted March 10, 2019 2 hours ago, hakukamana said: Good find. Link to comment Share on other sites More sharing options...
hakukamana Posted March 10, 2019 Author Share Posted March 10, 2019 NickInTimeFilms NAXJA Forum User Join Date: Aug 2015 Location: NJ Posts: 17 Re: Long Term Fuel Trim at 92. Renix Just gonna add a little input as I was quickly browsing the thread. Renix ECUs do have a KAM Keep Alive Memory which does store a few values such as previous LTFT, TPS closed %, and how many key cycles since a sensor fault, though I'm still trying to find that last one. The big debate is if Renix stores trouble codes which it does not save for the key cycle. I'm going to do a lot more looking into the few mystery values still left in the stream to see what I can find eventually. As for LTFT in general, after a reset it will read 128 which means it is using the stock look-up table. Once the vehicle sucesfully stays in closed loop then it will start adjusting STFT and an average deviation will be found which is the LTFT. So LTFT shows you the average correction factor from the stock tables that is needed to stay stoic. STFT is the current needed deviation I think, and I forget if that changes in open loop. Lower LTFT readings means it is using less fuel to stay stoic, and higher readings show more fuel is required. For my stroker it sits are 176 but will go a little lower if only city driving. This is the guy who's manufacturing the in-cab diagnostic readers, he a lot smarter than me. But he knows the insides of the Renix computer and a lot of its construction. Link to comment Share on other sites More sharing options...
Ωhm Posted March 20, 2019 Share Posted March 20, 2019 How's your 3rd O2S doing? Link to comment Share on other sites More sharing options...
hakukamana Posted March 20, 2019 Author Share Posted March 20, 2019 Appears that the O2 is functional STFT moves from 117 to 134, LTFT up to 101 as of this morning. Thats as high as its gotten since the last new O2 install. Link to comment Share on other sites More sharing options...
Ωhm Posted March 20, 2019 Share Posted March 20, 2019 Numbers well within the O2S range of authority. Link to comment Share on other sites More sharing options...
hakukamana Posted March 20, 2019 Author Share Posted March 20, 2019 The LTFT numbers I guess indicate less fuel required to hit the stoic magic number of 128. Pulse width closed loop after warm up and at idle is about 5. to 5.1 ms Link to comment Share on other sites More sharing options...
Ωhm Posted March 20, 2019 Share Posted March 20, 2019 That's exactly what STFT/LTFT is all about. RENIX seems to be working just fine and as intended. Good thing you got that MT2500. Link to comment Share on other sites More sharing options...
JMO413 Posted March 21, 2019 Share Posted March 21, 2019 Good to hear the O2 sensor is still working. When I read this I plugged mine in again and my LTFT is at 102 now. Link to comment Share on other sites More sharing options...
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