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How to raise and lower idle rmp using a Tech II scanner

Confirmed! Tech II scanner is able to raise and lower the idle!


It’s possible for GM vehicles to get the ecm reprogrammed for the fast idle increase. your local dealer should be able to help you out. here is how it works.



Programming ECM For PTO Idle Up Operation



2001-2007 Chevrolet Silverado Classic

2003-2009 Chevrolet Kodiak

2001-2007 GMC Sierra Classic

2003-2009 GMC TopKick

with 6.6L or 8.1L Engine




Connect the Tech 2 and follow the steps below to program the ECM for idle up feature with PTO operation:


Turn on tech 2 and build the vehicle


select “Powertrain” (Or “Vehicle Control Systems” on later models)


select “Special Functions” (or “Module Setup” on later models)


select “PTO Options”


select “Change Options” (soft key at bottom of the screen)


select F1 “PTO Preset Speed Control”


select pto max engine speed set to 2200 – 4400 rpm (not below 2200)



Note: These steps will not allow the engine rpm to exceed the rpm setting, even during normal driving if the PTO switch is on


select stand by speed (base fast idle ) set to 1200 (this setting is initial fast idle)


select PTO set speed – set to 1400 rpm


select PTO resume speed – set 1700 rpm


select PTO max engage speed – set to 1800 rpm (PTO engagement inhibit speed)


select PTO engine shutdown – no


select PTO engage relay – no


select PTO feed back -no


select “Reprogram” (soft key at bottom of screen) “Waiting For Data” displays on screen-once data comes back verify settings remain


key off- until tech 2 “beeps” and screen shows “no communication” (Very important step if missed setting will not store)


key on – verify settings remain on list


operate pto



CGDI BMW Feedback/ Support

CGDI Prog BMW tech support:



CGDI BMW Feedback: (updated in 04.2018)


19-03-2018, 11:04 AM

Excellent tool so far. no bricks or problems.
extremely fast for cas1, 2 & 3
for cas3+ if need downgrade 10 minutes and seems safe, ISN read from DME 10 minutes does not support all DME is down side.
make sure you have proper power on the car
cas4 /+ did not check


19-03-2018, 15:59 PM

cas4 F10 – ok (new key)
cas4+ F10 – ok (new key) isn from org key or dump DME
fem/bdc F31 – ok – reset mileage, change isn, change vin, make keys with oryginal key and with dump from DDE
cas3+ E60- ok , downgrade and make key with isn from org key


28-03-2018, 05:51 AM

08-Mini Cooper – Added Key With CGDI Bmw programmer 
the wording was alittle confusing when it ask u is it a prox or non prox this car was a non prox so u push yes and for add keys u put your first key in the programmer slot then put your unlocked key in and then your done just make sure u have jumpers Hooked up so u don
t lose power and I had a surge protector on my obd to stabilize the power cas3+


07-04-2018, 06:06 AM

So I purchased the cgdi programmer.

I figured out how make key for cas2-3 but I cant figure out how to use this programer for cas4. I tried looking online but only find for cas3,no instructions for cas4, can anyone tell me steps for cas4 I have f10 I can try one.


07-04-2018, 07:22 AM

Cas4 can only be done by reading DFlash from Freescale cpu then load into programmer software and generade key. It can no ne done by obd.
Need xprog or vvdi prog to read the dflash.


10-04-2018, 06:55 AM

work like VVDI2 – synchronization every month





VCM2 clone (Vxdiag Vcx Nano)/ IDS version/ Driver Questions & Answers

I have both a vcx and a decent vcm2 clone, both from I purchased the vcx first thinking I could get by with it and was sadly mistaken.


If you never intend to do anything other than read codes and live data then the vcx will do however I was never able to get it to reprogram anything or connect to ANY north american diesel trucks.


My vcm2 functions flawlessly including updating it and adding wireless to it with a pair of the proper wifi dongles.


Keep in mind when purchasing a vcm2 that there are look alike ones out there that are vcx nanos in vcm2 clothing. (I made that mistake as well lol) Buy it from someone who shows photos of the inside. the fake vcm2 will have a single pcb with one main chip and not allot else going on. A good vcm2 has a second pcb on a riser with two noticeable capacitors on it and both boards a nearly covered with components.


Look here: good VCM2 with 2 boards:


Which IDS software version for VCM2 clone SP177-C1?


If you want a VCM2 SP177-C1, IDS V100 software will come with the unit.

But if you have a VCM2 clone already and the unit is HQ clone (same as units in ), you have luck with the latest IDS version 04-2018

The newest IDS compatible with VCM2 SP177C1 is version IDS 109:



Need install driver myself?


For vcm2 clone you can install vcm manager or ids and it will install drivers automatically.



For Vxdiag Vcx Nano Ford clone in vcm2 case use vx manager which will install drivers too.




03:59 Publié dans Blog, car diagnosis tool | Tags : vcmii | Lien permanent | Commentaires (0)