I am stumped need help
Thread Starter
Teching In
Joined: Mar 2009
Posts: 24
Likes: 0
From: Toronto, ON, Canada
I am stumped need help Hi All,
I have transplanted an Corvette Ls2 into a miata and rove it with no issues all last year then put the car away for the winter. I moved some wires around and put the PCM from the engine compartment to under the dash. No big deal.
The problem is the car will not not run for more than 2 minutes. It starts then dies. If I try the throttle it works and revs but then dies immediately. So this tells me the computer is not fried. The problem is the ODBII port will not give me any signal or codes at all it just says error. I have checked continuity of all of the wires including ground, power and Hi and Lo bus and all are fine from the odbII input to the pin connectors so the plug is working.
How can an ODBII not work and yet the car can start but not run? If the computer were fried I could see the port not working but then how does the car start?
I so need some help and direction on this one.
Thank you.
I have transplanted an Corvette Ls2 into a miata and rove it with no issues all last year then put the car away for the winter. I moved some wires around and put the PCM from the engine compartment to under the dash. No big deal.
The problem is the car will not not run for more than 2 minutes. It starts then dies. If I try the throttle it works and revs but then dies immediately. So this tells me the computer is not fried. The problem is the ODBII port will not give me any signal or codes at all it just says error. I have checked continuity of all of the wires including ground, power and Hi and Lo bus and all are fine from the odbII input to the pin connectors so the plug is working.
How can an ODBII not work and yet the car can start but not run? If the computer were fried I could see the port not working but then how does the car start?
I so need some help and direction on this one.
Thank you.
TECH Resident
Joined: Nov 2011
Posts: 812
Likes: 0
From: NJ
Hi All,
I have transplanted an Corvette Ls2 into a miata and rove it with no issues all last year then put the car away for the winter. I moved some wires around and put the PCM from the engine compartment to under the dash. No big deal.
The problem is the car will not not run for more than 2 minutes. It starts then dies. If I try the throttle it works and revs but then dies immediately. So this tells me the computer is not fried. The problem is the ODBII port will not give me any signal or codes at all it just says error. I have checked continuity of all of the wires including ground, power and Hi and Lo bus and all are fine from the odbII input to the pin connectors so the plug is working.
How can an ODBII not work and yet the car can start but not run? If the computer were fried I could see the port not working but then how does the car start?
I so need some help and direction on this one.
Thank you.
I have transplanted an Corvette Ls2 into a miata and rove it with no issues all last year then put the car away for the winter. I moved some wires around and put the PCM from the engine compartment to under the dash. No big deal.
The problem is the car will not not run for more than 2 minutes. It starts then dies. If I try the throttle it works and revs but then dies immediately. So this tells me the computer is not fried. The problem is the ODBII port will not give me any signal or codes at all it just says error. I have checked continuity of all of the wires including ground, power and Hi and Lo bus and all are fine from the odbII input to the pin connectors so the plug is working.
How can an ODBII not work and yet the car can start but not run? If the computer were fried I could see the port not working but then how does the car start?
I so need some help and direction on this one.
Thank you.
check your fuses. i've seen lack of scanner comms caused by a blown fuse.
