Quoting GSTwithPSI:
Hey, Brad. No CDI.
I actually swapped back to a stock coil and wires to try and fix the issue, but the car ran better on the COP. If this doesn't fix the problem, I'll pick up an ARC2.
BTW, which model do you recommend for these cars?
On the bench, with all good stock parts, the stock stuff really seems to work better than COP. That doesn't always translate to the same results on a car. Plug wires, plugs, or coils can all cause the stock parts to perform worse. Some people say the stock stuff works better than COP, others say the COP is better. But it is a small improvement either way. To get a LOT more out of the ignition, you'd need to replace the PTU and coils, go to some custom smart coil, or use a CDI.
As for which model ARC-2 for these, I am not 100% sure. For any later model eclipse, the plug n play is designed to simplify the install. The tach adapter built in helps to fool the PTU and ECU into thinking everything is working like stock. It's a no brainer.
I think looking at the 90 eclipse, it didn't matter since it uses a different connector, and the tach adapter didn't help. That would be the determining factor. I think the Galant has a PTU like the 91-99 eclipse, right? The tach adapter works to trick the 91-99 PTU into putting out the right tach signal.
