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Possible yes, to be fair to the shop. When they quote a re-flash they do not consider aftermarket junk in a vehicle. Sorry to be so blunt but this is the reason I often decline work on vehicles with modifications. More often then not people will rig aftermarket equipment that ends up causing problems in the long run
Any change in tire size from the factory installed tire size will affect the systems on the vehicle. Your speedometer will not be accurate, and in your case your will be going faster than what is stated on the speedometer with a bigger tire. It will also effect your ABS system if your vehicle is equipped, but only a small amount and some ABS systems can be relearned with a different tire size by a scan tool (but it will not fix your speedo). One option you may do is contact your GM deler and see what it would cost to have a PCM and ABS program intalled, GM offers reflashes of the modules to compensate for aftermarket equipment, but GM charges the dealer for this service, and will of course pass the cost down to you.
DEALERSHIP HAS TO REPROGRAM THE NEW PCM.YOU NEED A GM SCANNER TO REPROGRAM NEW PCMS IN GM VECHICLES THE GM VECHICLES FROM 1996 UP TO 2011 HAS TO BE REPROGRAM AT DEALERSHIP, HOME MECHANIC CANT REPROGRAM IT.YOU NEED GM TECH 2 SCANNER.
Before you start on your turbo kit, you need to make sure you can tune your PCM for the added turbo kit and that you have an fuel system to support the extra boost.
The turbo kit installation is the easy part, having the fuel system and PCM program is another. Not having the right program will cause you an expensive project, keep me posted, be glad to help you get your turbo installed without additional expensive cost.
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difficult to answer because of the immobilisor system, unless you get one from the scrapyard but you must have the chip out of the key and the transponder thats behind the ignition key under the shroud
You just can't turn up the turbo boost any more with the new engines. If the turbo start to boost more then the PCM is programed to, it will cut the fuel pressure down and you loose more HP. Here is a link for you if your looking to get good HP out of your 6.0 liter diesel. You can replace the wast gate for the turbo with a higher PSI rating but your going to have to by a electronic boost builder for the PCM so it will not kill the fuel pressure soon as you start making more boost. http://www.thoroughbreddiesel.com/bd-diesel/turbo-boost-builder.htm and http://innovativediesel.com/ Good luck and hope you get the HP your looking for to get out of your engine.
I had the same problem on a 94 dodge with the cummins. It seems the crank sensor that reads from a notch on the harmonic balancer was the problem Without this sensor reading that the engine is running the alternator wont charge. Possibly the same problem with yours
The PCMor powertrain control module is only on 1996 and newer cars.Earlier models have a ECM or electronic control module/pcm.You want to change the ECM if its a 1992.Its located under the right hand side of the instrument panel.The ecm has a prom( programmable read only memory)in it.You will need to remove this from the old ecm and install in the new ecm.The ECM/PCM can be used in many different GM vehicles but the prom is very specific and must be used only in the vehicle it was designed.The prom will not come with the new ecm and must be carefully removed and installed on the new ecm.There also is a CALPAK in the ECM ( A devise for fuel delivery) This may come with the new ECM But make sure all parts are the same.You should get a vehicle repair manual to do this job correctly,and make sure you do not damage your PROM.Your PROM is very IMPORTANT!