acidrain088

iTrader: (3)

first off i only have the engine harness. its off a lq4

mabey im blind but the obd2 port isnt on this. im assuming its on the bulkhead harness and i need to buy one. also i se the diagrams where i only have to hook up 4 wires to the diagnostic port, anyone have any problem tunning with this? also do i need the bulkhead harness or anything else to complete this while im at it.?

thanks
JESSE

ryanvv355

iTrader: (17)

OBD2 port is in the interior harness, you will not get it with a take off engine harness.

Go remove one from any 96+ model vehicle, they are all the same.

To wire it up you need 2 grounds, one ignition +12v that is hot during cranking, and the serial data line from the pcm. The system tunes using serial data through the single data wire.

stealth71

iTrader: (15)

You should be good with just the engine harness. There is only one data wire that comes from the PCM to the OBDII port. Other than that 2 grounds and battery power. Tuned my car fine with just those wires. I have the OBDII port in the glove box with extended wires so I can pull it out for hooking up a scanner. Got the codes scanned at the auto parts store one day and the guy was like, um that's not OBDII, then I opened the glove box.

I was writing this as he was replying. NOTE: It is battery power not Ignition.

I just grabbed a port of a car at the junkyard.

Frost

iTrader: (45)

I am out of stock on the car-side connectors but am expecting more in the middle of next week: http://www.lsxtune.com/shop/product_...oducts_id/1196


edit

forgot, we have the kind with the screw down ears in stock: http://www.lsxtune.com/shop/product_...oducts_id/1589

ryanvv355

iTrader: (17)

stealth71 is right, I miss-thought that one, its constant battery power, sorry.

acidrain088

iTrader: (3)

so tunning should be no problem then?

stealth71

iTrader: (15)

Nope.