HELP! sync loss problem...

[cardelino18]

I need some help. i have a 1jzgte non vvti with an ms3x. i wired it up with new shielded wires on crank and cam sensor. i also added a 10kohms resistor (to each cam and crank sensor), ive played with noise filtering settings, and nothing. i need help because im getting very frustated with it. it revs good until around 2800-3000rpm then gets sync loss for a sec, if i keep reving it, it passes and revs clearly after it breaks up.

Attached is a composite logg, actual log of the tunerstudio with settings, and the trigger logger.

any help will be very appreciated!

Thanks in advance!

[billr]

Post the MSQ, too.

[cardelino18]

Witch one is the MSQ?

[whittlebeast]

Your problem is all on the cam sensor. Is that with stock sensors?

[cardelino18]

Your problem is all on the cam sensor. Is that with stock sensors?

Yes stock new sensor

[cardelino18]

Your problem is all on the cam sensor. Is that with stock sensors?

Yes stock new sensor

Plus new shielded wire, resistor, and new clip

[whittlebeast]

I elected to get rid of the cam sensor on my Honda motor.

http://www.nbs-stl.com/CrxTypeR/B18C%20Dizzy.jpg

The red Hall in the photo comes from DIY.

Andy

[whittlebeast]

Can you get to a scope to see what the cam signal looks like?

This is what my crank sensor looks like. My cam sensor looks like a square wave.

Andy

[whittlebeast]

Are you running the newest 1.5 code? It has some new tricks under the covers.

[cardelino18]

Can you get to a scope to see what the cam signal looks like?

This is what my crank sensor looks like. My cam sensor looks like a square wave.

Andy

I dont have a scope available unfortunately

[cardelino18]

Are you running the newest 1.5 code? It has some new tricks under the covers.

Havent updated it yet

[cardelino18]

Your problem is all on the cam sensor. Is that with stock sensors?

What problem do you see with my cam?

[whittlebeast]

If you look at that composite log, you can see where the code misses a couple of cam teeth in a row. Look at page 75 in the log.

Andy

[cardelino18]

If you look at that composite log, you can see where the code misses a couple of cam teeth in a row. Look at page 75 in the log.

Andy

What could be causing this? ive been trying to fix this for the past 2 months.... it only does it at this point on the RPM, it revs out good after that hickup. I am out of ideas on how to fix this... any help please.

Thanks!

[whittlebeast]

Can you describe what you have for a can sensor and cam trigger pin. Hall sensor, VR sensor... Pics help for us to figure what is in there now.

Just for reference, here is what I going to for cam sync.

http://www.nbs-stl.com/CrxTypeR/Dizzy3.jpg

And here is the modified stock cam pin and the Hall sensor from DIYAutotune.

http://www.nbs-stl.com/CrxTypeR/B18C%20Dizzy.jpg

But we have the tools to make this sort of thing. Most people don't.

Andy

[cardelino18]

Can you describe what you have for a can sensor and cam trigger pin. Hall sensor, VR sensor... Pics help for us to figure what is in there now.

Just for reference, here is what I going to for cam sync.

http://www.nbs-stl.com/CrxTypeR/Dizzy3.jpg

And here is the modified stock cam pin and the Hall sensor from DIYAutotune.

http://www.nbs-stl.com/CrxTypeR/B18C%20Dizzy.jpg

But we have the tools to make this sort of thing. Most people don't.

Andy

i think its a VR sensor, i am double checking it with my tuner who is helping me with this issue as well. I am not very techy savvy when it comes to electrical specifics, i just wired it up to all the oem sensors and started to learn alot more than expected lol. Once i have a solid answer i will post it, its a little early here so idk if he is awake.

[cardelino18]

Can you describe what you have for a can sensor and cam trigger pin. Hall sensor, VR sensor... Pics help for us to figure what is in there now.

Just for reference, here is what I going to for cam sync.

http://www.nbs-stl.com/CrxTypeR/Dizzy3.jpg

And here is the modified stock cam pin and the Hall sensor from DIYAutotune.

http://www.nbs-stl.com/CrxTypeR/B18C%20Dizzy.jpg

But we have the tools to make this sort of thing. Most people don't.

Andy

Ok i verified with him, it is in deed a VR sensor.