ZONES89RS

iTrader: (25)

Are you saying there is 2 different connectors on your GEN IVs? The extension swaps the wires for you, without it you have to swap the wires. The GEN IIIs read from the rear. Not sure fo there is a early LS2 with a front cam sensor and 24x reluctor or not.

ZONES89RS

iTrader: (25)

Got it running pretty damn good today, need to be dialed in more but it is doing better. Had a vacuum leak and i am not sure if ramping timing up faster on the low end or bringing it in slower will help the low end sluggishness and slight bog when i shift.

rojs234

iTrader: (5)

I guess my question for you and also for *3pedals* should have been...do you have a front mounted or rear mounted cam sensor?? There are so many variants of the LS engines, I have trouble keeping up. There are a lot of 24X Gen lV engines. I have a 24X LS2 and my friend has an '05 Gen lV 5.3 that is 24X. I have a 6010 box on mine. The cam sensor plug fit the LS2 front sensor but I had to lengthen the wires because it is made for the Gen lll engines. It would not run, (backfired) until I switched the A and C wires on the plug. I always thought it was because the sensor was on opposite end of cam and rotated opposite? We used a 2002 intake and harness on my friend's 5.3 and had to also lengthen and swap the wires to the front sensor. It had the extension but the 2002 plug wouldn't fit it. we did away with it and plugged into the one in the timing cover. The reason I asked where you plugged in, is because MSD's instructions show the 6012 box already has the wires reversed. In fact, that is the only difference I can find in the external wiring on the two boxes. I always thought 58x engines had front cam sensors and that was why the wires were reversed. If your 58X engine has a rear cam sensor, it stands to reason you would have to reverse them back to the Gen lll configuration.

ZONES89RS

iTrader: (25)

Not sure, guess there are middle child engines in 05 basically. With the front mount, the GM wiring swaps the wires and MSD assumes everyone will use that GM harness i suspect.

rojs234

iTrader: (5)

Not sure of what?? Does your 58X 5.3 have a rear cam sensor or front? Does an LY6 58X have a rear cam sensor or front? I was merely asking because I thought it might help some of the newer guys understand why they might need to reverse the wires on the cam plug. It appears that it was my mistake for bringing it up. Sorry I asked.

ZONES89RS

iTrader: (25)

Dont be sorry, it is a damn good question, i wish i knew, i have not messed with the 05s except for a short block i currently have, it still has a 24x reluctor wheel, but i got it as a short block, but it has a regular rear mount setup for the cam, i think you can chalk it up to the "mid year" type of changes and it would help if we can figure out when GM did what, i am sure it is a headache for some guys that get caught up with it, i assume as long as you have the gray crank sensor that you at least know you need a 58x ignition box and if it runs screwed up you need to swap the wires.

NemeSS

iTrader: (127)

Any engine with out the "distributor hole" for rear mount cam sensor is 58x and has the cam gear reluctor and sensor on timing cover

rojs234

iTrader: (5)

OK, I'm going to try this one more time because I guess I'm not explaining it right Both you and *3pedals* are running 6012 boxes...right? You say you are not using the extension that swaps the wires, so I assumed that you plugged your box right into the sensor on the timing cover...right? Now, *3pedals* says he is using the extension, so I assume he has his box plugged into the end of the extension. My friends engine had the extension on it from the factory, but it had a TOTALLY different plug on the end of the extension than the one where it was plugged into the sensor. The one at the sensor was the same as the early Gen lll harness and also the same as my 6010 box. I asked where you plugged in because I don't see how both you and *3pedals* could be using the plug that comes on the 6012 and be plugging into two totally different connectors. I was also under the impression that ALL 58x engines had front cam sensors. Can anyone confirm??? Ron

ZONES89RS

iTrader: (25)

Well, i had no idea the connectors were different, i will see if i can find my spare GEN III cam sensor and compare tot he one i have. That sounds weird.

ZONES89RS

iTrader: (25)

Alrigth, back to the car, i played with ther timing, and it is just breaking up at lower RPM, i assume the 114 LSA is making a high vacuum signal to the carb, might be simply pilling allot of fuel, i will read thge plugs tomorrow, and i might even have to swap power valve out, wouldnt hurt to check it as well, it even does it on my properly tuned proform off my 89 RS witht e 6.0, but it has a 110 LSA and is tuned for that engine. It clears up on the bige end and starts pulling great, then loads up again once you shift.

3pedals

iTrader: (3)

Zone check your powervalve to make sure its not blown, that will cause over rich missfire at low throttle/low revs that will seem like " breaking up"
keep us informed on your cars progress zone.
Rojs234 - I have 07 block, 58x crank sensor front cover cam sensor. I am using 6012 box, and oem GM timing sensor extension harness. I have the msd connected to that. I have not swapped any wires yet, I will be working on it soon, and i will report back if wire swap/extension removal, fixes MY issue. I dont want to hijack this thread, but I figure I should reports back here if I can shed more light on these problems for others who might be reading.

Prorac1

iTrader: (4)

Hey 3 pedals. If you could start a new thread about the 6012 subject/wire swaping, it would be appreciated. Im heading towards the wiring portion of my swap now and it would probably help a lot of others as well. Thanks Eric L

ZONES89RS

iTrader: (25)

Yea, I
Might need to start a sticky for specific info like that.

NemeSS

iTrader: (127)

That's a good idea. Seems like a lot of wiring/box issue threads have been posted

ZONES89RS

iTrader: (25)

Dropped the TA off for exhaust work today, will pick it up tomorrow and make a idle clip, but this thing simply needs more converter and gear.

NemeSS

iTrader: (127)

Or psig

ZONES89RS

iTrader: (25)

boost would only make the low end load up allot worse right now, going to switch cams unless i get this straight when the day comes i go install the turbo.

ZONES89RS

iTrader: (25)

Well, sounds great so far, still need tuning, but the bullet on it sounds like a Formula 1 car in the revs. Allot quieter than the RS fr sure, LOL.


Try to get a sound clip later.