15 degrees or less, 94 sho atx starts & then shuts off in a few seconds

[Brian Mullins]

Hi! My 94 sho atx only does this when the temperature is 15 degrees or less. Usually on the 5th or 6th time using my auto start remote, it will start & stay running. Runs great after. I think it might be because my sho has a jet programming module in it. I’ll take any thoughts & ideas on this matter please. Thanks everyone. I still my sho!

 

[luigisho]

Pull the jet chip, reset the computer and see if there is a difference. It's just plug and play anyway so it's easy to swap in and out. I would leave it out but that is just me. Do you still have the plastic clip that is removed to fit the chip and is supposed to be in there to stabilize the PCM? I am starting to think that, over time, all that weight on the front pin side can make things go awry and the weight should be taken off the plug connector. No concrete evidence but anecdotal stuff is trickling in.

 

[rubydist]

lots of evidence that the jet chip was junk, so just take it off and throw it away.

 

[Brian Mullins]

Pull the jet chip, reset the computer and see if there is a difference. It's just plug and play anyway so it's easy to swap in and out. I would leave it out but that is just me. Do you still have the plastic clip that is removed to fit the chip and is supposed to be in there to stabilize the PCM? I am starting to think that, over time, all that weight on the front pin side can make things go awry and the weight should be taken off the plug connector. No concrete evidence but anecdotal stuff is trickling in.

I’ll give that a try .. thxs

 

[Brian Mullins]

lots of evidence that the jet chip was junk, so just take it off and throw it away.

Hi.. i read that online also. I still wanted it so i bought it 3/16. My sho has always had a **** at extremely slow/crawling speeds when you let off the gas & tap the gas again since it was brand new. After installing the jet chip, my sho doesnt do that **** anymore. Also, I put 2.5 inch exhaust on it summer of 2018 & a c&l 73mm maf. Got rid of the resonator, with magnaflow mufflers. Im going to change the idle air control valve & see what happens. I have the original oem one as a spare. Theres an advance aftermarket one on it now.. since 2009.
I appreciate the responses, thank you