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12-29-2008, 06:40 PM
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#1
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Join Date: Jan 2008
Location: Aberdeen,nc/columbus,nj
Posts: 1,449
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obd1 to obd2?
ok guys within the next couple weeks im going to be swapping out my 406 and lt1 for a complete ls1 with auto trans. engine wiring and pcm. what would i need or have to do to upgrade my 86 monte carlo to obd2?
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Eric
07 Silverado 1500 5.3
01 Z28 6 speed
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12-29-2008, 07:02 PM
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#2
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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You'll pretty much have to rewire the car, and you'll still be put on the rollers at the inspection station.
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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12-29-2008, 07:05 PM
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#3
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Join Date: Jan 2008
Location: Aberdeen,nc/columbus,nj
Posts: 1,449
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well if thats the case is there any way i can just connect an obd2 plug somewhere in my engine bay to make tuning easier?
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Eric
07 Silverado 1500 5.3
01 Z28 6 speed
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12-29-2008, 07:21 PM
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#4
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Co-Founder / Site Admin
Join Date: Jul 2004
Location: Ewing, NJ
Posts: 22,473
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The OBDII port can be placed anywhere you want....
- Justin
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1999 Camry - Beigemobile DD
2002 Suburban - Wife's DD
2004 Grand Cherokee - Not running / Project / Selling?
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12-29-2008, 07:38 PM
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#5
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Join Date: Dec 2004
Location: Browns Mills NJ/ Rotondo West FL
Posts: 3,054
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Quote:
Originally Posted by Tru2Chevy
You'll pretty much have to rewire the car, and you'll still be put on the rollers at the inspection station.
- Justin
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That sux OBD2 ftl
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AI HCR 241's , Lunati 223/236 .615/.626 114+2 , Full Exhaust , Ported Fast 92 , Ported LS2 TB , Veraram , 85mm MAF , Circle D 4000 , 3.42's , GTP 36# , CSP Dyno tune. More on the way
420 HP/367 TQ on a Unlocked Converter & still climbing.
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12-29-2008, 07:53 PM
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#6
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Stalker
Join Date: Aug 2004
Posts: 12,077
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yes you can place it anywhere, however, you need to first get one. It is part of the dash harness not the engine harness so if you're picking up just an engine/trans/ecm combo... you don't have it. you can hack up a dash harness and make it work, OR the smart thing to do, would be buy a stand alone ls1 harness, MUCH easier for an engine swapped vehicle. Then sell off the oem harness to make back some money. I did a lt1 in an older vette and a tpi motor in a monte SS, i used a custom stand alone harness each time and wiring was a peice of cake.
also do u have a fuel injection gas tank? Fuel injection sending unit with pump?
Last edited by V; 12-29-2008 at 07:55 PM.
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12-29-2008, 08:44 PM
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#7
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Join Date: Jan 2008
Location: Aberdeen,nc/columbus,nj
Posts: 1,449
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where can i get that kind of harness? and no i dont have a fi pump and tank yet
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Eric
07 Silverado 1500 5.3
01 Z28 6 speed
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12-30-2008, 07:41 AM
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#8
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Join Date: Mar 2007
Location: NJ
Posts: 540
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12-30-2008, 09:40 AM
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#9
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Stalker
Join Date: Aug 2004
Posts: 12,077
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...yea... "painless wiring" is always an option, but i didnt like their prices plus for my LT1 swap they didnt have a harness that would work for a 96(that was in 99 so now i bet they do)
for my LT1 into a 79 vette swap with a 89 700r4, i used Centech Wiring.
www.centechwire.com
for the speed density TPI into my 87 Monte SS, i used a guy who custom makes them, also does special prom tuning. He's very knowledgeable and has recently gotten into LSx motors now as well. I believe he offers harnesses too.
www.Chevythunder.com
both of these other places will be, or should be, hundreds cheaper than Painless and I have experience with both of them and they are good quality. Both had let me also get around VATs, the lt1 with a plug in module, and the TPI he programmed it out.
As for fuel system, not sure if you looked into it, but easiest thing to do is get a grand national fuel tank and sending unit with pump, or get a fuel tank from a 4.3l v6 fuel injected monte from the early 80's.
Last edited by V; 12-30-2008 at 09:41 AM.
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