jrdnclrk
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jrdnclrk reacted to Scott in 2JZGTE VVTi Ignition Break Up
Good morning,
We did some bench testing a little while back using the factory supra ignition coils with the factory ignitor and with an aftermarket ignitor.
Here are the dwell tables we ended up with.
Factory ignitor with factory coils
Aftermarket 'dumb' ignitor with factory coils
The part numbers for the components were:
Supra Ignition coil: 90919 - 02205
Supra Ignitor: 89621-22030
Aftermarket Ignitor: I2
Cheers,
Scott
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jrdnclrk reacted to Adamw in 2jzge vvti on alpha N base map
Use 1JZ vvti trigger mode, offset should be close to zero with that but you need to confirm with a timing light.
Since you have an idle valve, you will need Equation load source set to MAP and the MAP sensor connected to the same manifold so that the ecu can compensate for the varying air volume passing through the idle valve.
Turn off CLL until fuel table is tuned.
Turn on Async injection with min async PW = 1.0ms. And put something like 5 in your accel sens table.
Assuming it is NA, change your lambda target table so that 0.87 is the smallest value in there (WOT). I normally have around 095 at idle, 0.9 at 40% TP and 0.87 at WOT.
For your ign table copy your 60%TP row down to the 100% row, even then it will be on the conservative side.
Also, not related to your running problem, but I would suggest taking a whole lot of rows out of your fuel and ign tables, you are only creating a lot of tuning work by having so many. For ITB's I usually do TP 0%,2,5,8,11,15,20,30,40,60,100. Only add extra cells if there is found to be some area that is not taken care of by linear interpolation during tuning.
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jrdnclrk got a reaction from essb00 in 1.5jzgte cold crank no start stormX
Hello thanks again for the help! I was able to resolve the issue by changing the way my pre crank prime works. I had previously had it set up to precrank prime as soon as the ecu is keyed on. i changed it to as soon as the ecu see start signal. i also added an input for the start signal to digital input 2. all is well car now fires up easily and the main problem is resolved!
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jrdnclrk reacted to Adamw in 1.5jzgte cold crank no start stormX
Yeah I have similar thoughts. Mostly looks like a trigger issue. Do a cold trigger scope when you can and that should give us some clues where the problem is. The battery voltage is very low so it will help if you fix that.
Your trigger setup is odd - does it have a VVT crank wheel and a non VVT cam trigger?
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jrdnclrk reacted to essb00 in 1.5jzgte cold crank no start stormX
You're still getting trigger errors there.
Do a trigger scope log then post it.
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jrdnclrk reacted to Adamw in 1.5jzgte non vvti crank no start link g4x storm
You've got pretty low voltage on the cam sensor and a few trigger errors showing. Try adjusting the trigger arming thresholds as per the examples below.
And I would suggest pulling a plug out to check for spark rather than relying on just the timing light flash, that is not always conclusive.
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jrdnclrk reacted to Electredge in 1.5jzgte non vvti crank no start link g4x storm
if you set timing with a light it shouldn't matter which trigger you use... but you need to use a timing light to set it up.