Question about 2007 Pontiac Solstice Convertible

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Put in a new ECM unit and car will not start and did the key thing.

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Colin Stickland

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Dealer only to program the keys ,unless you have the fancy software and not program the key fob ,you need all the keys to be programmed and the computer with the OBDII interface and the correct software ,

Posted on Feb 21, 2016

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1 Answer

Just changed my lock cylinder the key starts my jeep put only for about 5 sec. A light with a key and a line throught shows up .why wont it stay running.


the new key is not programmed to the immobilizer take it to a service center that can program keys to the vehicle ECM unit

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My vehicle does not start well in the cold..


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Dec 23, 2014 | 1998 Chevrolet Suburban

1 Answer

Will not start


Hey Sidney. On G6 it has a pass lock anti theft- in which your key is programmed into the computer. If the key is not programmed into the computer or ECM, then nothing at all, heres the steps, and where it says a new cut key on 1, ignore that, just use your key, and also you will need to take your g6 into the dealership and have them reflash the ECM, and program the VIN number into your new ECM, if not it might throw the check engine light.

1. Insert a new cut key in ignition and turn key to the ON position for
10 minutes and 30 seconds.

2. Within 45 seconds turn the key to OFF and then back to the ON position for
10 minutes and 30 seconds. 3. Within 45 seconds turn the key to OFF and then back to the ON position for
10 minutes and 30 seconds.

4. Turn key OFF then back ON. The key is now programmed.
Start vehicle to test key.

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1 Answer

What is code B2799


This Diagnostic Trouble Code (DTC) is output when the Engine Control Module (ECM) detects errors in communication between the Transponder Key Electronic Control Unit (ECU) assembly and the ECM, or in the communication lines. This DTC is also output when an engine start is attempted while the ECU communication ID between the transponder key ECU assembly and the ECM is different.
Possible causes Faulty Key Faulty transponder key amplifier Faulty Transponder Key Electronic Control Unit (ECU) Transponder key amplifier wire harness Faulty Engine Control Module (ECM)

Mar 02, 2013 | 2007 Lexus ES 350

1 Answer

Just installed new ecm on 04 gmc envoy, now engine wont start. everything else works. what should i do?


when ever you replace ECM computer, you must take out your CHIP , to put it into your new ECM. did you do this ?????? if not your engine will not run ,even with GOD turning the key .

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I have nissan sentra 2001 remote starter was installed in the car about 4 months a go i start the car with remote it start it after i put the key in ignition i push the brake pedal trying to put reverse...


you defiantly have problems with computer thay are setup to shut every thing down anti theft its a beautiful thing it will drive you nuts who aver put it in have them figure the problem out hope this helps bob

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1 Answer

I did something potentially really stupid - drilled a hole through my key (to hang it because the clip busted) Now, the car will not start, I understand this to be the immobilizer. The car starts but...


You would have to replace the ECM at a minimum and most likely the ECM and the Ignition. You should still be able to get keys for the vehicle with the chip installed but you would have to get them from the dealer. The immobilzer, in order to be of any use, would have to be incorporated into the ECM unit.

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ECM and PCM???


take your key lock and unlock passenger door 3 times then see if itwill start

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