Thread: SR20ve - breaking up @ over 6000rpm

My car with sr20ve is experiencing some breaking up issues about 6000rpm

This is just occasional.

Did afr test and that's fine

But I cant code the ecu as the consult section not wire up yet.

sr20ve with 16ve cams, i/h/e and Calum Basic. Revs to 8500rpm

So far I have checked:

1. Plug wires - ok

2. Dizzy - just the cap. Cleaned the contacts

3. Plugs - they seem to be fine

Thanks

Peace

What are you using to switch over your cams? Have you looked into that? Have you dyno tuned yet? How long have you been running VE swap?

Moved to VVL section.

how did you check your plug wires, measuring thier resistance?? replace them if you can test them, I had a similar problem an that was the problem

Now that I have answered your questions, can you possibly tell what's causing the problem?

Thanks.

Peace

Thanks man. I suspect the wires or dizzy.

I didnt check for resistance, I only checked for leaks by looking @ them in the dark. They could be leaking down the plug holes too as I didnt check there.

#1 and #2 wires were leaking since they were showing sparks all over. Got a used set if wires and # 1 is leaking a bit so I am gonna get a new set.

How do I check the resistance though?

Peace

Fsm tells the tolerable resistancies (is that a word?) for each wire, And you use a ohm meter (multimeter) to test... Good luck

Or swap for a friend's known good ones or new ones to test before you buy your own...

Check the porcelain on the plugs. Sometimes a slight crack will cause this. Look carefully around the plug.

just put the multimeter on ( Ohms) and test from one tip of the plug wire to the other. I tried that, an everything was within specs, and I kept having the same problem. I then borrowed another set and it worked, better than before.