Beeler422

iTrader: (3)

I have a 69 camaro with an LS2 with a painless harness and some funky connector. It doesn't have an OBD2 connector. I want to see if I can swap this one out for an OBD2 style as I can't do any diagnostics with it. Can someone post the voltages for the pins. This connector has 4 wires.

2xLS1

iTrader: (25)

Depends on the PCM.

Beeler422

iTrader: (3)

Thanks. Well I can't see the pcm from where it is mounted, but this connector only has 4 wires. I believe one is a ground, one is a +12v one is the CEL and I'm not sure about the 4th; something to the pcm I would guess. I want to check the voltages that I have now with what there should be for the obd2.

LS1MCSS

iTrader: (18)

Should have two ground wires, a signal wire and battery power wire.

EFIHARNESS

That is an aldl connector. You don't have a obd connector because your ecu is not obd2. That connector is serial, with 4 pins, b+, data, ground, and usually dia boot. Steve

Beeler422

iTrader: (3)

Hmm. So can I convert it to obd2 and use my hptuners harness?

2xLS1

iTrader: (25)

Who knows. You won't say what the PMC is.

Beeler422

iTrader: (3)

If I knew I would I would gladly tell you. I can't see it from where it's mounted.

EFIHARNESS

if it is a small 4x4 box (mefi 3 or 4), no you cannot use efi live or hp tuners. you would need mefiburn. Steve

Beeler422

iTrader: (3)

Thanks Steve. Pretty sure that's what I have. I'm thinking about ripping it all out and going with a obd2 pcm. This is a nightmare. I have a cel and can't figure out what the issue is.

EFIHARNESS

If all you need is fault codes, the readers are about $40. If you choose to change out the system pm me as i would be interested in the old system. Steve

Beeler422

iTrader: (3)

Thanks Steve. Any local auto places sell those readers or is it something I need to get online? All I've ever seen are obd readers. I'll for sure let you know if I swap it out.

EFIHARNESS

e bay or rinda technologies. Steve