random misfire w/ 6-bolt swap

[tsitalon03]

I have a 2g with a 6bolt engine swap and it has a CEL. When it gets past 4500k it makes a wierd sputtering noise so we checked and turns out its shcwing some misfire codes. I was told the only way to correct this is to get a 95 eprom ecu and dsm. True or false.....I need sum feedback......I wanna get this thing on the track already!

 

[Black95awd]

you can use a potentiometer to get rid of it, but Im not sure where to hook it up. ask SBRJoe he did it to his car.

 

[snowborder714]

Look on page 10 of this document for more info on the potentiometer mod:
http://www.magnusmotorsports.com/tech/1gina2g.pdf

 

[tsitalon03]

Thanks thats some really good info.....but I still cant find that orange wire they are talking about.

 

[snowborder714]

You will need to take off the side panel on the driver's side. This way you can access the ECU plugs. Then look at this guide and find the specific wire (pin #85):
http://www.dsmtuners.com/forums/articles-tuning-ecu/281763-2g-turbo-ecu-pinout-w-wire-colors.html

 

[tsitalon03]

ok i'll check that out tom...thanx

 

[tsitalon03]

Ok I did it and this is what happened:
There was no orange wire with a white stripe...but there was a orange one so I used it
There was an increase in power
But I still have the same misfire problem just not as bad now
CEL is still on
If anyone done this to thier car let me know what I'm doin wrong

 

[tsitalon03]

I also wanna add that I DIDNT unhook the connector before I cut/soldered the wires to the potentiometer...does that make any difference?....That sh*t was stuck....

 

[tsitalon03]

Should I just get new spark plug wires?

 

[snowborder714]

Did you make sure to use a 10k pot? Have you tried turning it one direction or the other to try and get it to idle/run better? I had this mod done to my car before I got DSMlink and it worked fine for me.

Disconnect the battery for a while to clear the CEL and see if it comes back.

What spark plugs are you using? Are they properly gapped? And you could try new spark plug wires - it couldn't hurt.

 

[tsitalon03]

Yea i have the 10k pot...I'm try and disconnect the battery I have ngk plug wires. I'm turning it the right way because i notice if i turn it too much 1 way the idle gets real choppy. I'll keep you posted

 

[tsitalon03]

I disconnected the battery and I think it worked! I drove around for 20 min and no cel. But i'm still getting bogging or hesitation in the upper rpm range. I'll make a seperate thread for that.

 

[blcknspo0ln]

If you did not do the pot mod correctly, resetting the ECU will only delay the arrival of your misfire code again.

 

[Nicks2319]

Don't screw with the pot mod. Get a DSMChip and call it a day. They can remove the misfire code.

KEYDIVER Chips - DSM ECU Tuning

You ARE running a blacktop CAS, right?

 

[tsitalon03]

I think I did it correctly...right wire...got a little performance increase I'm praying I dont see that cel again..I drove it for like an hour so I'll keep my fingers crossed.

 

[T is for TURBO]

Like Nicks2319 said, run a black lid CAS. I ran a green lid CAS and I would get the CEL every few miles. I switched to a black lid CAS and I would get it about onces a day.

 

[tsitalon03]

Well I started the car up and the cel came back on....damn ! I did everything in the instructions...well except I didnt unplug the connector before I soldered the pot on, but outside of that everything was cake. What could I possibly be doing wrong, wish I had money for a dsmchip!

 

[tsitalon03]

Also I was thinkin..should I swap plug wires 1&2 and 3&4?

 

[Nicks2319]

Also I was thinkin..should I swap plug wires 1&2 and 3&4?

Why would you want to do that?

 

[tsitalon03]

I dunno..thats what it said on that magnusmotorsports link a few posts back.

 

[Nicks2319]

Oh. When doing the 6bolt swap, you switch 1 with 3 and 2 with 4. If this were not already done, your car wouldn't be running. So you do not need to do this.

 

[snowborder714]

Also I was thinkin..should I swap plug wires 1&2 and 3&4?

Oh. When doing the 6bolt swap, you switch 1 with 3 and 2 with 4.

Because of the 6 bolt swap, you should have 1&4 swapped with 2&3. Order doesn't matter.

If this were not already done, your car wouldn't be running. So you do not need to do this.

Yes, the car would still run, just like crap.