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| roughredXR6 |
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Maybe go back to your last good tune.
If it comes good it must be something in the tune. If it still goes lean it may be a sensor, vac leak, fuel, etc.
_________________ Ported ED XR6 head shaved too much, AU gasket, custom Crow Cam, Pacemaker 4480's, 5-speed conversion, billet aluminium flywheel, GT clutch, T.I. Performance J3 chip, custom water/methanol injection, modified BA throttle body. Paint&Panel by Barbed Wire Fence. |
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| ranga83 |
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most sensor faults SHOULD make it go rich. i'd be looking at a possible issue with your fuel supply. (pump?, reg?) efxr6wagon you have a pm
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| galapogos01 |
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Posts: 1139 Joined: 27th Feb 2005 Ride: Supercharged EF Fairmont Location: T.I. Performance HQ |
I'd try the last good tune and see whether you have the same problem. Unless ECT/ACT have changed enough to make it richer/leaner, it could be a fuel supply issue.
Posting up your before/after VE maps to see whether you changed the top end much may also help. Perhaps an ECU reset may be a good idea -- if it's been driven around very rich, it may have learned large negative fuel trims as a result.
_________________ {DESCRIPTION} - {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION} and more! |
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| efxr6wagon |
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Well, it's fixed. I'm not sure what fixed it, but this is what I did:
- reset the ECU - unplugged the chip and put it back in to make sure it was well-seated - filled the tank with petrol (it was down to about 20%) I did not touch the tune. My guess is that it was getting mild fuel starvation during the acceleration run from the fuel sloshing to the back of the tank. Thanks, ranga83, for suggesting fuel supply as the cause. You live and learn. Thanks for all the help.
_________________ 95 EF XR6 wagon, 17" FTRs, DBA rotors, KYB/Koni, AU bottom end, ported EF head, backcut valves, SS Inductions, Territory intake, 10.2 CR, Auckland 1258 cam, vernier gear, PH4480 headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip |
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| ranga83 |
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that's what we are all in this thread for, help each other when you get stuck!
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| roughredXR6 |
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Makes sense. Mine also leans out when I wind out third if it's below quarter tank line.
I would expect auto's would be even more prone to this, at least a manual gets the chance to have a drink when you change gears. Must be going better with that tune then, if it's created a starvation problem you never noticed before. My tuning gear should be here tomorrow  , thanks T.I. Performance (Jason).Can't wait to start playing with it. (the tune that is, stop giggling) Think I'm starting to get my head around TunerPro. Now gotta work out the configuration side of WinLog. Got me a 3E2 WBo2 controller. Yay.
_________________ Ported ED XR6 head shaved too much, AU gasket, custom Crow Cam, Pacemaker 4480's, 5-speed conversion, billet aluminium flywheel, GT clutch, T.I. Performance J3 chip, custom water/methanol injection, modified BA throttle body. Paint&Panel by Barbed Wire Fence. |
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| efxr6wagon |
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I rarely let it drop below 1/4 tank, and have never done full ramp runs with it below that, so never experienced the problem before. Can you picture an N/A with a surge tank?
 And, yes, she goes much better  . The midrange is superb, and throttle response is awesome. I have had to pull about 5 degrees of spark out at 3000-3500 rpm to maximise acceleration (and avoid pinging), just like the factory tunes. So the engine must have been tuned to absolutely pack the charge in at that sweet spot.I also have the tune pretty much sorted for the high stall. It's a blast to drive now. No drama - just boogie. The extra torque has overcome most of the part-throttle looseness you get with a high-stall. When I'm finished, I will post what I have ended up with. It starts running out of puff at 5500rpm, but it's still worth hanging on to 5800rpm in 1st as the 2.39 ratio is still producing more torque at the wheels than 4000rpm in 2nd at 1.45 ratio. I felt it tapering off, so dropped the shift point by 300 rpm and my 1/4 mile times slowed down by about .15 sec. So, I have bumped the shift point back up. Oh, and this automatic definitely does not get to take a drink between gears. I have more than doubled the trans line pressure at WOT and redline, so it shifts very tight but not harsh or hard. I'm not interested in breaking anything. The shift takes about .25 sec, instead of the .7 sec it did with factory tune  .
_________________ 95 EF XR6 wagon, 17" FTRs, DBA rotors, KYB/Koni, AU bottom end, ported EF head, backcut valves, SS Inductions, Territory intake, 10.2 CR, Auckland 1258 cam, vernier gear, PH4480 headers, no cat, Tickford 2.5", 2800rpm stall, J3 chip |
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| shyun |
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I put a J3 on my AU2 XR8 and it works fine BUT the aircon is on all the time. Anyone know why this happens? Thanks
_________________ ED XR6, LeMans Red, 5-Speed |
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| galapogos01 |
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Posts: 1139 Joined: 27th Feb 2005 Ride: Supercharged EF Fairmont Location: T.I. Performance HQ |
It's a problem that happens on some AUs. The work around is to add a relay on the AC output from the ECU that is triggered by the AC button.
Cheers, Jason
_________________ {DESCRIPTION} - {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION} and more! |
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| tanner892 |
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{USERNAME} wrote: I put a J3 on my AU2 XR8 and it works fine BUT the aircon is on all the time. Anyone know why this happens? Thanks you might have a bit of pizza stuck in there.
_________________ 92 EB II SXR6 T5 |
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| roughredXR6 |
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Hi all
Can anyone tell me what the 'Spark Table #4 Alt' is used for? Cheers.
_________________ Ported ED XR6 head shaved too much, AU gasket, custom Crow Cam, Pacemaker 4480's, 5-speed conversion, billet aluminium flywheel, GT clutch, T.I. Performance J3 chip, custom water/methanol injection, modified BA throttle body. Paint&Panel by Barbed Wire Fence. |
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| ranga83 |
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I think its an undefined table. don't usually use it
Jase would be able to confirm tho.
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| El-jezah011 |
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Hey if i put the j3 chip with a manual tune in my falcon that i am currently converting to manual,will i still have to mess around with the neutral and reverse light wiring? Cheers.
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| galapogos01 |
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Posts: 1139 Joined: 27th Feb 2005 Ride: Supercharged EF Fairmont Location: T.I. Performance HQ |
Seems i'm not getting email alerts from this thread for some reason.
Some of the alt tables are to do with LPG mode timing, depends on which def you're referring to. Answered the question about wiring on Facebook and via email. Not going to answer it three times! Cheers, Jason
_________________ {DESCRIPTION} - {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION}, {DESCRIPTION} and more! |
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| GrannyFalcon82 |
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( New here ) So clearly this wouldn't work with a standard EA 1 3.9Lmpi manual ECU? Seeing as the first page of this thread states vehicles supported are to be EB onwards. Quite interested ( Mixture issues ).
_________________ Rolling around with a Barra 182 - equipped 1988 EA falcon |
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