2G 6 bolt swap major problems

DSM Chase · Aug 11, 2014

Installed a 6 bolt in my 95 GSX using the cas adapter harness to the 95/96 cam and crank sensor plugs, Car starts and idles very rough and has no vacuum... Cant figure out the Firing order and I set the cas properly base timing is around 5 DEG, Im using a 2G coil pack and 95 ECU with link.

Someone help me out ive read and read.[DOUBLEPOST=1407816694][/DOUBLEPOST]Using ecmtunings recommended firing order for non 95/96 cas with 95 ecu, I'm using a 1G green top cas with 6 bolt head, cas is Rotated so it's NOT 180 out... All plugs are black and car is misfiring.[DOUBLEPOST=1407846565][/DOUBLEPOST]Using this harness to the 1G cas from cam and crank sensor plugs off harness.

spyderdrifter · Aug 12, 2014

Go here: http://magnusmotorsports.com/tech-articles/
and download the 1g in a 2g PDF. That'll give you your firing order swap for the 95-96 models on page 5.

DSM Chase · Aug 12, 2014

Im using 3241 firing order, the gas pedal is extremely unresponsive and at times it revs to whatever it wants, All the plugs are black and its running pig rich. Also making some strange compressor surge noise heard through the intake filter. Has no vacuum at idle, I've tried different mafs different cas, the tps and coil pack came off a perfectly running car.

Twinturbo120 · Aug 12, 2014

-On the valve cover is 4-3-2-1 as you are looking at them from the front, on the coil is 4-1-2-3 as you're looking at them from the driver side fender.

That's a quote from turboholic

DSM Chase · Aug 12, 2014

spyderdrifter said:
Go here: http://magnusmotorsports.com/tech-articles/
and download the 1g in a 2g PDF. That'll give you your firing order swap for the 95-96 models on page 5.

I've read all that a few times, plus it only talks about 2g head firing order.[DOUBLEPOST=1407900360][/DOUBLEPOST]

Twinturbo120 said:
-On the valve cover is 4-3-2-1 as you are looking at them from the front, on the coil is 4-1-2-3 as you're looking at them from the driver side fender.

That's a quote from turboholic

The Car will not even crank on 4-1-2-3, it actually hangs it It up...with fuel I'm guessing.

Twinturbo120 · Aug 12, 2014

Wow. What setting do you have selected link?

DSM Chase · Aug 12, 2014

My normal tune that ran perfect on my 7 bolt, obviously I haven't been able to dial I'm my idle tune because it barely runs and clearly has a spark/ timing issue, I have the use non 95/96 cam sensor box checked but it doesn't change a thing whether its checked or not... Not even while its attempting to idle it doesn't phase it.

Twinturbo120 · Aug 12, 2014

DSM Chase said:
My normal tune that ran perfect on my 7 bolt, obviously I haven't been able to dial I'm my idle tune because it barely runs and clearly has a spark/ timing issue, I have the use non 95/96 cam sensor box checked but it doesn't change a thing whether its checked or not... Not even while its attempting to idle it doesn't phase it.

What plug order were you using when you did that test?

DSM Chase · Aug 12, 2014

3214...ecmlinks recommended order by them.
https://www.ecmtuning.com/wiki/swapplugwires

Using one on right!

Twinturbo120 · Aug 12, 2014

Well, it depends on how you are looking at it. From the valve cover or from the driver side fender?

DSM Chase · Aug 13, 2014

My firing order is exactly how it shows in the picture I posted its not that hard to interpret, Im lost with this car guess I should have just built a 7 bolt I could have been driving it days ago.

It will crank for a sec then shut back off when cold but if you manually warm it up it will stay running and at times all idle at 2-3K all over the place still misfiring and fouling plugs, super rich, throttle does what it wants etc. Driving it around my yard in first gear if you let off the gas it accelerates for a sec? :banghead:

Twinturbo120 · Aug 13, 2014

Have you tried swapping 1 and 4?

athlete3344 · Aug 13, 2014

If you think about it, theres really only 4 possible options for your plug wiring.

Leave 1 and 4, Leave 2 and 3; test for start
Swap 1 and 4, Leave 2 and 3; test for start
Swap 1 and 4, Swap 2 and 3; test for start
Leave 1 and 4, Swap 2 and 3; test for start

If one of those 4 scenarios doesnt result in a roughly decent idle, then something else is wrong. Wasnt there a box to check to invert firing order or something on ecmlink (sorry, not too familiar with it yet)?

Twinturbo120 · Aug 13, 2014

athlete3344 said:
If you think about it, theres really only 4 possible options for your plug wiring.

Leave 1 and 4, Leave 2 and 3; test for start
Swap 1 and 4, Leave 2 and 3; test for start
Swap 1 and 4, Swap 2 and 3; test for start
Leave 1 and 4, Swap 2 and 3; test for start

If one of those 4 scenarios doesnt result in a roughly decent idle, then something else is wrong. Wasnt there a box to check to invert firing order or something on ecmlink (sorry, not too familiar with it yet)?

He said he left it unchecked, which is what he is suppose to do. But didn't do anything *shrugs*

DSM Chase · Aug 13, 2014

Figured it out...my fault! Leaking intake Mani gasket! Held zero boost pretty much

Edit: I'm and idiot and used a 2G gasket wow.

Twinturbo120 · Aug 13, 2014

Oh jesus

I guess blt's are always in order. Glad you figured it out man

DSM Chase · Aug 13, 2014

Thanks for the help

keltalon · Aug 14, 2014

Way to go chase. I was just getting ready to drive over. :applause:

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