Idle VE Table Values?
06-22-2018, 01:45 PM
#61
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One other thing Braineack, I am using your 1K resistor jumper method to try and maintain my tachometer function, but it isn't working. Is there something I am missing other than just jumping IG to B+ in the diagnostic port?
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06-22-2018, 02:53 PM
#63
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i'm a little bit worried that this wont be a 1 to 1 comparison. Due to the firmware change between the diy version and mine, i got about 45 errors. I think I translated them all, but some do not translate directly between tunes. I'll translate as best I can between them and try it.
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06-22-2018, 06:13 PM
#66
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Added injector size, selected AFR targeting, set my sensor calibrations, added my fan relay output, put it in closed loop idle, corrected my timing offset, and set my spark to normal. Otherwise it is all DIY basemap now. Car runs much rougher at idle (due to untimed injection?) but the car runs where it should and drives great. Seems one of the combinations of settings I had was no bueno. Thank you!
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06-26-2018, 01:35 PM
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Well... I guess the only way to test the output is with a scope right? (Which again, I don't have...) I'll make sire all the wires have continuity in the right places, rule out everything except the signal.
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06-26-2018, 04:31 PM
#71
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Stevejack, were you ever able to get the VE Fuel table sorted out to look a bit more normal? If so, could you post how it looks now? I'm new to this also.
Thx. Hope it works out for you.
Thx. Hope it works out for you.
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06-26-2018, 04:44 PM
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06-28-2018, 09:05 AM
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Received all my parts from Mouser and JBPERF for my 4 channel injector expansion board. Assembled it all Tuesday night, and it started first try yesterday! I have never soldered SMC before, so that was new and "exciting". I setup my injector order wrong at first, i wired everything 1-1-1. Realized my mistake after getting some unusual AFR readings last night, and changed it before I hit the hay. The injector channels are now hooked up in the firing order of the engine. INJ 1-1, INJ 2-3, INJ 3-4, INJ 4-2. Driving and datalogging on my way to work this morning, it all seems quite grand.
Still no Tach Function on dash.... makes me sad. Going to have to diagnose that next.
Still no Tach Function on dash.... makes me sad. Going to have to diagnose that next.
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07-14-2018, 11:48 AM
#75
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no tach still
Okay, I still need some help with the tach.... I checked my grounds and my 12v supply to the tach. The needle quivers with the rest of the gauges when I key on. IG- on the diagnostic is confirmed continuous with the connector on the coil pack. Measuring frequency with my multimeter between IG- and ground gives me 100hz at idle. Using a 2k, 1k, or 470 ohm resistor from IG- to 12V gives no change in results on the dash.
At one point very early on, I had my tach signal wire jumped to my CAS. When I couldn't get the car to start I identified that as the issue and removed that jumper... Could that have killed my tach?
At one point very early on, I had my tach signal wire jumped to my CAS. When I couldn't get the car to start I identified that as the issue and removed that jumper... Could that have killed my tach?
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07-16-2018, 11:35 AM
#77
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No continuity at idle. Diode test mode gives no beeps at idle. My MM is pretty cheap, it may not be able to keep up with the beeps in diode test mode. I get 60-100Hz in frequency test mode though?
I bit the bullet. I have a picoscope coming this week. It may waste everyone's time less if I just wait and post a screenshot of the output.
I bit the bullet. I have a picoscope coming this week. It may waste everyone's time less if I just wait and post a screenshot of the output.
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07-16-2018, 12:36 PM
#78
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it should be the constant 12v (when jumped to b+ via a resistor) -- then when a coil is active, it grounds the tach singal. tach just measures the events per cycle, and viola engine speed.
ive seen bad coils keep ig- constantly grounded, and thus no tach.
ive seen bad coils keep ig- constantly grounded, and thus no tach.
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08-20-2018, 09:41 PM
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okay... so I got my scope, and finally stopped procrastinating about using it. Anyway, see attached. that is the unchanged signal (no pull up) coming off of my IG- wire. Thoughts? Is that normal looking?
Last edited by JaveStack; 08-20-2018 at 09:52 PM.
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08-20-2018, 09:50 PM
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When I jump IG- to 12V with a 1k resistor, the signal changes to the attached noise @ 1.3V, the 20V clipping light comes on, and the scope warns of overvoltage protection. Im thinking its getting transient spikes from the coil... Is that normal? Should i just swap coils for poops and chuckles to see what happens?
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