The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Double Check My Timing and Firing order

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

YUPOK

Proven Member
397
30
Aug 13, 2013
Riverdale, New Jersey
Just need a double check on my setup. I have a 6 bolt swap in my 95 talon. It has a 1G long wire CAS on 2GB head. The ECU is EPROM but no clue what year it's from. Everything is stock setup.

CAS is timed to TDC per Road Race Engineering instructions Method 2, cam alignment pins at 12:00, exhaust cam gear at 3:00 lines up with Intake cam gear at 9:00 and mark on the crank pulley lines up with TDC. CAS lined up with the notch on wing and dot on housing. CAS, and Crank sensor wires are tied in as shown in the tech article drawing (I hope)

Since I did the 6 bolt swap I swapped injector pins 1 is now 14, 2 is now 1, 15 is now 2 and 14 is now 15 as specified in the write up.

I also swapped spark plug wires, from 1342 to 4231.

I have spark on all 4 plugs, plugs are wet with fuel and it pops when turning over but won't light.

I read conflicting articles about the spark plug fire order different for 2GA and 2GB ECU's.

Can anyone shed some light on this? Am I set up correctly? It's possible I mixed something up but just want to make sure this is the combo needed for this 6 bolt swap.


Thanks!
 
I also swapped spark plug wires, from 1342 to 4231.

This is not right. Plug 1 and 4 will be on the same coil; 2 and 3 will be on the same coil, forever and always.

The original order is 4123, if I recall correctly. Now, it is only necessary to swap the firing order IFF the ECU is expecting the order to be switched based on the signal provided by the 1G CAS. It being an EPROM ECU and being in a 2G, I would ASSUME that it is a '95 ECU.

The '95 ECU is sparking opposite of what the 1G CAS is telling it to do. In order to compensate, the plug wires are swapped, making the order 2341 (or other variant that keeps 2-3 on the same coil and 1-4 on the same coil).
 
Ok, thanks for the input. I did find out the ECU is from a 2GA.

I will change the fire order and that should be the last piece to the puzzle.

Thanks
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 1g MD122260 Forward Facing Oil Filter Housing
    Up for sale Discontinued MD122260 Forward Facing Oil Filter Housing $150.00 shipped plus paypal...
    • BTKai
    • Updated:
    • Expires
  • For sale 2g 2G OEM AWD Manual Driver Front Axle
    2G OEM AWD Manual Driver Front Axle $80 + shipping & paypal feesYou must be registered to see...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G AWD Fuel Pump Hanger
    2G AWD Fuel Pump Hanger $200 + shipping & paypal feesYou must be registered to see element.You...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G AWD Fuel Level Sending Unit
    2G AWD Fuel Level Sending Unit $85 + shipping & paypal fees* this is not the fuel pump hanger...
    • jersygsx
    • Updated:
    • Expires
  • Wanted Spyder decal for rear bumper MR300306
    My '98 Spyder GS-T lacks the decal on the rear bumper that denotes the car as a Spyder (my...
    • 98MaroonSpyder
    • Updated:
    • Expires
Back
Top