The Top DSM Community on the Web

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. Log in to remove most ads.

Please Support STM Tuned
Please Support Fuel Injector Clinic

2G 1g CAS with Kiggly Crank Trigger

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

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

snapz

Probationary Member
5
0
Feb 23, 2009
Mobile, Alabama
First off, thanks to everyone who contributes to this forum. It's helped me tremendously in my dsm projects.

I have a 97 gsx and finishing up my 6 bolt swap. It has the Kiggly crank sensor on it and a black 4wire 1g CAS. My ? is since I'm using the Kiggly CPS sensor, what's the proper way to wire the 4 wire 1g CAS to my 3 wire 2g harness plug without tapping into the CPS wires like the RRE and Magnus harnesses do? Surely I don't still wire it the same way while using the Kiggly cps, right?. I've read and read about the 1g cas in a 2g, but can't find this answer. Everything I've found is in regard to not running a CPS. Thanks in advance. TJ
 
The email Kevin sent me prior to purchasing the trigger was as follows:

You can use either the 1g or 2g CAS that mounts on the far end of the head along with our crank trigger sensor.

So I chose to go the 1g route, to avoid tapping the end of the cam. Seems rewiring the 1g CAS would be faster and easier. Could I just swap the 2g cams into the 1g head?
 
If you have the 97+ intake cam and cam sensor on hand, I would use those.
 
I'd rather use the 1gCAS for now instead of having to reset the timing, it's a pain with the 2g mount on the 6bolt. Anyway here's what I'm thinking. Looking at RRE's drawing could I just wire it as follows?
You must be logged in to view this image or video.


1gCAS wire 1 to 2gCAS Plug 2
1gCAS wire 3 to 2gCAS Plug 1
1gCAS wire 4 to 2gCAS Plug 3


Seems all you need is Signal, + and - so I don't see why that wouldn't work. Just ignore the CPS wiring. I've been considering this but wanted some advice on the wiring first. Anybody see a problem with this wiring?
 
In that case, I don't see any problems with it even though it isn't my personal preference. Have at it and let us know how it turns out. :thumb:
 
Snapz any word on how this worked out? I am have the same problem with my car on the same set up.
 
Oops guess i should have updated this. It worked perfectly like I suggested. never had an issue out of it.
 
Just wondering if you ever ran your car without the kiggly if you noticed a difference
 
I only got to run the motor for a month or so before tranny went out. I can't say for sure how it will turn out for the long haul but for the time I was driving it it worked fine with no issues. Tranny will be rebuilt this summer so I'll know more about the sensor after then.
 
I only got to run the motor for a month or so before tranny went out. I can't say for sure how it will turn out for the long haul but for the time I was driving it it worked fine with no issues. Tranny will be rebuilt this summer so I'll know more about the sensor after then.
Snapz any updates on this? How does the car feel like hisandherturbo says?
 
I'm in the middle of the Kiggly install and for future reference, I choose to keep the 1g CAS. Reason being, if the Kiggly sensor fails, all I'd have to do is cut the blue wire and hook it back up to the 1g CAS crank output and be on my way. Secondly, for those who use adjustable cam gears it would end up changing (injector or spark cant remember) timing if adjusting the intake cam, so being adjustable is pretty important.

If I remember I'll update this thread in a few weeks to how the sensor works out.
 
Sorry to revive a dead thread. I am about to do this exact set up. 1g CAS + Kiggly's 6-bolt crank sensor. I also should mention that I plan on installing an Evo 8 ECU, and that I already have my timing belt installed. My question is, would I still need to set up base ignition timing with a timing light? Or is this redundant?
 
When using the kiggly unit, if mechanical timing is correct base timing stays static so there is no adjustment.
 
IIRC, crank is spark timing, cam is injector timing.

Actually you bring up a good point- if using the Kiggly and 1g CAS (which is adjustable) I believe you would have to first set timing with the 1g (use 1g crank + cam signals) once you're set, then hookup your Kiggly.

Reason being is, yes the mechanical timing is correct and the crank signal is not adjustable, but where would you set the cam adjustment? A bad adjustment would lead to injector timing being off, I would think.
 
IIRC, crank is spark timing, cam is injector timing.

Actually you bring up a good point- if using the Kiggly and 1g CAS (which is adjustable) I believe you would have to first set timing with the 1g (use 1g crank + cam signals) once you're set, then hookup your Kiggly.

Reason being is, yes the mechanical timing is correct and the crank signal is not adjustable, but where would you set the cam adjustment? A bad adjustment would lead to injector timing being off, I would think.

I was not sure of this either. Can anyone else chime in to confirm or explain this for us? Wisemen?
 
If you can, try this. Watching a timing light, adjust your 1g CAS and see if timing changes. If it don't change but the engine sounds different, then there's confirmation.

I would but my project is not done. Makes me sick to see my last post from a million years ago, knowing I haven't done much to it since.
 
FYI guys all the timing events are based off the crank angle sensor pulses. The cam sensor signal only tells it what cylinder is firing. Basically summed up, The ecu has a window it listens for the cam sensor to go high, if it does it says #1 is on firing stroke.

When you run a 1g cas on a 2g, that cam sensor signal isn't exactly right, so sometimes it doesn't go high when the ecu is expecting it, and you get the random missfire code.

If you are running the kiggly, I'd run the 2g cam sensor for sure.
 
FYI guys all the timing events are based off the crank angle sensor pulses. The cam sensor signal only tells it what cylinder is firing. Basically summed up, The ecu has a window it listens for the cam sensor to go high, if it does it says #1 is on firing stroke.

When you run a 1g cas on a 2g, that cam sensor signal isn't exactly right, so sometimes it doesn't go high when the ecu is expecting it, and you get the random missfire code.

If you are running the kiggly, I'd run the 2g cam sensor for sure.

bastarddsm, can you give an example or explain why the 1g cam signal would be inaccurate a 2g? Switching to a 2g cam sensor would be a lot of work for me at this point, but I will if I have to..
 
Interesting... Looking at the first graph, it seems like the cam signal should sequence up with the injector #1 trigger signal each time unless you have a 95-96 Eclipse. If that is the case, then the signal would be reversed? I could be wrong.. But then that kind of leads me back to my original question.

Will injector and spark timing from pin 1 be affected by the rotation of the 1g cas even if I don't use the yellow wire from pin 2?
 
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications MyMitsubishiStore.com RixRacing RockAuto RTM Racing STM Tuned

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top