Lateral-g Forums - PSI Conversion

Page 3 of 14

Last »

Show 40 post(s) from this thread on one page

Lateral-g Forums (https://www.lateral-g.net/forums/index.php)

- LSX Conversions (https://www.lateral-g.net/forums/forumdisplay.php?f=70)

- - PSI Conversion (https://www.lateral-g.net/forums/showthread.php?t=50836)

Vega$69

08-11-2015 07:39 AM

With a PSI harness you do not need a brake switch with a manual.

If you wired in a neutral safety or clutch switch it would not crank so thats not the problem.

When you first turn the key on you should hear the fuel pump run for a few seconds. That would indicate the fuel pump relay is working.

Then you need to determine if the ignition relay is working. The easiest way is to touch the relay and have someone turn key on to see if it clicks on.

The other common issue with not starting is the ground wires that attach to the head are either not connected or loose.

Swain

08-11-2015 09:16 AM

Quote:

Originally Posted by 79 Camaro (Post 613488)

If you hooked up the 12 volt switched to the original wire that runs to the coil and it was older style points ignition the coil wire will have a resistor built limiting voltage during run.

I've never heard of a brake light switch wired to the ECM when using a manual trans that would prevent it from starting. Only time I've seen it was to make the reverse lock out work like stock.

Try wiring the switched 12 volt to 12 volt constant just temporarily to see if it will fire. If it does disconnecting the wire will shut the computer down and shut off the engine.

From what I've read a bad cam sensor will not shut the engine down but a bad crank sensor will.

I ran a constant hot wire still nothing. Fans come on right away I heard that means theres a code. Shipping the ECU out to PSI today. This will be the best thing to do as they can program it to my specs.

Vega$69

08-11-2015 09:27 AM

Quote:

Originally Posted by Swain (Post 613503)

Did you pull codes?

I had the same issue with the fans and the harness/ECU I used on my LS7 Build from PSI. As I recall the fan set up was set wrong in the ECM. I have HP Tuner and was able to correct it.

cpd004

08-11-2015 09:47 AM

One thing that can make the fans come on (provided the ECM is configured properly for all else) is not hooking up some sort of check engine light.

dhutton

08-11-2015 09:47 AM

I recommend a low cost code scanner if you don't have one. Get one that lets you reset codes too. Very handy for these swaps.

Don

Swain

08-11-2015 10:06 AM

Quote:

Originally Posted by dhutton (Post 613508)

I recommend a low cost code scanner if you don't have one. Get one that lets you reset codes too. Very handy for these swaps.

Don

I have a scanner it will no link to ECU.

Tried everything lol.

cpd004

08-11-2015 10:08 AM

My scanner wouldn't link when a fuse blew on the PSi harness. Changed the fuse and everything worked.

dhutton

08-11-2015 10:20 AM

Quote:

Originally Posted by Swain (Post 613510)

I have a scanner it will no link to ECU.

Tried everything lol.

Damn, you at least get A for effort.. :)

Don

Swain

08-11-2015 10:28 AM

Quote:

Originally Posted by cpd004 (Post 613512)

My scanner wouldn't link when a fuse blew on the PSi harness. Changed the fuse and everything worked.

Checked all the fuses 5 times or more ha. I wish it was simple something so simple. Prolly is

dhutton

08-11-2015 10:35 AM

Quote:

Originally Posted by Swain (Post 613514)

Checked all the fuses 5 times or more ha. I wish it was simple something so simple. Prolly is

What about all your grounds? How is everything grounded?

Don

All times are GMT -7. The time now is 11:25 AM.

Page 3 of 14

Last »

Show 40 post(s) from this thread on one page