What is the factory setting for the CPS on a VE5? I advanced the timing and made a mark , but it got erased.

 

You need go get a timing light....that is the best way to get it back right.....

 

How much does one cost?

 

About $50 at idiotzone.....

 

Are the timing on all VE5spd different? Or if I find another ve5 and copy the same postion then I will be fine?

 

If you want to get it close Then that will work...But if you want RIGHT then get a light....

BTW...Advance auto has one for $35....Little trick, Sshhhh...buy the light, use it,keep it clean,take it back.....$$ back in your pocket....

 

How does a timing gun work?

 

craig has a writeup on his site In the how to section...

 

I got a timing light and positioned it at 15deg. What's wierd is that the CPS is almost advanced all the way like on Craig's site. I have a JWT ECU. Also when it is at 15 deg. I hear a spontaneous sound from the exhaust that sounds like a small bubble flowing through some water, is that a backfire of some sort? When I retard the timing I don't hear it anymore.
Any ideas?

 

Did u read the timing marks right? CPS signal is ok - Grounding is ok?

Plug - CoilPack - ECU -condition?

 

The timings marks are right. When I move around the CPS I see the timing marks move accordingly so it is probably working fine. I have a grounding kit on there and made sure all the wires are clean and tight. When I remove each plug I can hear the misfire in each coil. So probably the coil and the plug are fine. The ECU is a week old from JWT. What else could be the problem?

 

"...marks move accordingly so it is probably working fine"
- I agree. And if its signal to ECU was warped, it would do the 'misfire' all the time as the CPS itself 'does not know' anythin about ign...
- measuring supply voltages will not hurt: also take alt wires out for testing (exclude possible alt spikes -problem)

Manufacturing questions is easy:
- gas is ok?
- what is plug type & mileage & gap? (relatively easy to swap)
- why JWT ECU? Is stock ECU available (=same probl???)

 

Agreed....Did the problem start after jwt install??...Maybe bad connection at ecu......