I have installed a Compustar CM800 S remote car starter with a Datalink ignition bypass on our 2007 GMC Envoy. It starts 3X and shuts off not satying running. Any help on this matter?

Question edited for funky spelling and punctuation.
Question moved to model category.

Jeff provides a great answer to the issue

• Jeff Armer Jan 02, 2023. Starter relay contacts stuck closed could be a reason .
• 
  Circuit Description
  Moving the ignition switch to the START position sends a 12 volt signal to the engine control module (ECM)/powertrain control module (PCM) Crank Request circuit. The ECM/PCM verifies that the transmission is in the PARK or NEUTRAL position. With the transmission in Park, voltage flows through the Park/Neutral position switch and feeds the starter relay coil. The ECM/PCM then grounds the control circuit of the starter relay. When the starter relay is energized it allows battery positive voltage to the starter solenoid S terminal. On some vehicles the starter will continue to crank the engine with the key released until it starts or the crank command has timed out to prevent excessive heat build up in the starter circuitry or the ECM/PCM receives an engine run flag.
  

You can't, that only happens in old movies.

Your immobilizer works with a chip in the key transmitting a code to the transponder in the ignition column which sends the code to the engine computer, the body control computer, the transmission computer and the ignition module. They all have a chat about it and then decide if they will let the car have power to the ignition and fuel pump. This all happens fast between the ignition lighting up and turning the starter motor.

There are always people with other ideas though and make money from YouTube videos.

https://www.google.com/search?q=2003+gmc+envoy+bypass+immobilizer+bypass

It is better to fix the problem, not find a way around it. The cheapest solution is a mobile auto locksmith.

Hotwiring and stealing cars has virtually stopped since the advent of immobilizers.

notrify installer or manufacturer for troubleshooting

Call Compustar tech support and ask them

PRIME 9000 1-Mile Range, 2-Way Select - Compustar

www.compustar.com/product/prime-9000/

Compustar1-Mile Range, 2-Way Model: RF-2W9000-SS ... The classic Compustar look that made us the top remote start brand in North America. ... The screen keeps you updated on whether your doors are locked and in the event of an alarm trigger, the ...

Compustar RF-2W9000-SS remote kit failure? - 8th Generation Honda ...

www.8thcivic.com > ... > ICE, Electrical, Security, & Navigation

Jan 8, 2015 - 4 posts
I have had my Compustar RF-2W9000-SS remote kit and secondary remote ... on my 2008 Honda Civic SI Coupe, FG2, at a compustar authorized dealer. ... my remote was not responding to my car (the unlock/lock, autostart, ...

CompuSTAR Starters - TheCarSalon.com

www.thecarsalon.com/home/automotive/remote-starters/compustar/

Either tap buttons I and III or Lock and Trunk simultaneously on your remote. ... The introduction of the RF-2W9000-SS in 2010 ushered in a new generation of .

RF-2W9000-SS by Compustar from Remotely Started MN

remotelystartedmn.com/product-details.php?product-id=40

Adjust with switch on the dash in the location of the dimmer switch !Check it out on you tube !

The remote start bypasses the ignition portion of the antitheft security system to allow you to remotely start the truck. But the system still needs the signal from the key to allow the vehicle to remain running and drive. I would assume the ignition is bad or needs to be trained to the system if it was replaced.

http://vatspasslockpasskeysecurityhelp.yolasite.com/

Hi,
Yes, the Ignition switch is tied into the 'shift interlock system', and if the system is never really 'off' the codes may be related.

I'd REMOVE the remote start to ensure you're working from a 'clean slate' and get the ignition switch fixed....likely a dealer item, but call around auto parts stores. You may need to get it 'rekeyed' to match.

Also, a Jimmy and Envoy are identical - the Envoy is the higher trim line of the Jimmy: LINK

GL,
Td

groung might of broke check battery cable to see if they are clean or wire might of broke

Hello,
I suggest checking your starter motor. If the starter motor is staying engaged it could be a bad solenoid or a bad ignition switch.

I hope this helps.

Roy