The Portabull LFX Build
#161
OBDII connections
Question on the OBDII connections. The ECU is signaling the CEL and I am trying to get a scanner to work so I can see what the issue is. I am using the cheap bluetooth scanner I have and I can not get it to talk to the ECU. Hopefully someone with a working conversion can help me figure out what pins need to be connected.
I know the following for sure:
4=Ground
16= 12v
The pinout shows 12 and 13 are the CAN + and - respectively but that is not working. My research on the Web has only added more confusion...LOL
I know the following for sure:
4=Ground
16= 12v
The pinout shows 12 and 13 are the CAN + and - respectively but that is not working. My research on the Web has only added more confusion...LOL
#170
Power and ground(s). 16, 4 + 5. https://developer.mbed.org/media/upl...GdyXCBV7-t.jpg
Leafy - I'll need to post an update about it, but the Torque app saved my *** last week. Besides - you'll need the proper pins to get Hptuners to work as well.
Leafy - I'll need to post an update about it, but the Torque app saved my *** last week. Besides - you'll need the proper pins to get Hptuners to work as well.
#171
Still no joy.... Forgive my ignorance but is there a difference in an error code reader and a full blown scanner as it relates to interface ports on the OBDII? I ask because I am wondering if the scanner is looking for serial data on pin 2 to establish the OBDII interface connection rather than just talking to the ECU via CAN Bus the way something like HPTuners may do.
O well.... I will research a bit tonight and try again tomorrow.
O well.... I will research a bit tonight and try again tomorrow.
#173
As you like to call them gooflophaze..."pro tip":
If your harness happens to be out of an auto the transmission has an internal loop that goes to and from the ATX-Q8 connector. Fell back on the good old rule of "when in doubt...ohm it out". 1 unloomed ECU harness and 2 hours later I now have a working OBDII port.
Last edited by griff; 06-10-2016 at 02:05 AM.
#175
If someone could verify that they have 12v on pin 5 of their MAF plug (pink/blk) I would greatly appreciate it. It looks like it should have voltage via the schematics but I'd like to verify before I just start throwing 12v to something.
All of my error codes are linked to the multi-function MAF sensor and again I traced the wire back to the transmission plugs that went to the auto. I guess I would STRONGLY advise others doing this swap to just fork out the coin for a standard trans harness if your motor was pulled from an auto.
All of my error codes are linked to the multi-function MAF sensor and again I traced the wire back to the transmission plugs that went to the auto. I guess I would STRONGLY advise others doing this swap to just fork out the coin for a standard trans harness if your motor was pulled from an auto.
Last edited by griff; 06-12-2016 at 03:29 AM.
#178
fyi, I found a controller for the fuel pump. They use the tach signal to detect the engine running, primes and shuts off
Fuel Pump Safety Switch
Fuel Pump Safety Switch
#179
It's been a while since posting, but I wanted to give you guys still building a little encouragement. Have done a lot of autox since the LFX swap, but finally got around to doing my first track day. Within my group, I was able to keep up with the vettes and 911s, and in the below video was running with a really nice GT40. I couldn't be happier with the setup. Driving the car has been a blast, but it's been a lot of fun talking to people that stop by after each run to check out the car after seeing it on track.
Little traffic in the first two minutes, but after that things open up and get a lot more fun:
Little traffic in the first two minutes, but after that things open up and get a lot more fun: