Question about 2002 GMC Sierra 2500HD

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Looking where to put a performance chip into my truck?

I was wondering how hard and what to do with the ecu.If I had to take the ecu right out board and all or if there was an easier way to do this..Thank you.

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  • yadayada
    yadayada May 11, 2010

    I do not understand the question, please be a bit clearer.

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  • 124 Answers

You need to buy a programer like a hypertech. With a programer all you do is plug it in below the steering column at the computer port. You will need to pick the things you want the programer to do then it will program the computer. When it is done you unplug and stick it in your closet. It takes about 20 minutes and requires no tools or mechanical ability.

Posted on Dec 12, 2008

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How do i set timming on 2013 camaro six cylinder


You don't. Your ECU (computer) controls its timing. You might look into a computer chip to reflash your ECU if you are looking for more performance. I have a friend who just installed one on his Subaru WRX and picked up more than 35 hp!

Feb 27, 2015 | 2013 Chevrolet Camaro

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Can i fit a ecu and fusebox and transponder from another renualt scenic to my renault scenic with out any problems


As long as you don't have a chip key you can but f you have a key that has an embedded chip in it you have to get te ecu reprogrammed at dealership

Apr 23, 2014 | 2004 Renault 181

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Ecu diagrams


open up the ecu these ecu used a chip set. they can be removed. there is 2 chips clipped in one for engine control timing and other one for fuel ... the chip numbers are the parts you need. also look at the can's in the ecu there is a set that over time you will need to replace. these will cause problems but dont cost alot to get replacements. the cans failing will cause none starting/ backfiring high fuel running and engine to just cut out at any speed but more prone to cut out at high rev's. i would think it would be this parts you need and not the chips as the chips only go if the battery has not been put back on right with the ignition on.

Dec 22, 2013 | Cars & Trucks

1 Answer

How do i replace ECU/ECM on 1996 toyota celica?


if it is just the fuel problem with the ecu, replace the chip in side the ecu from the new one you got as then you dont need to re program it then. the fuel chip and control is inside the ecu. you used to be able to get the chips for them and program the codes onto them. should be clip in type chips. if its soldered type as there are 2 types of ecu boards with same part number. you will need to un solder the chip.

Dec 20, 2013 | Cars & Trucks

1 Answer

What is ECU and how to make the ECU programmer? How exactly is that work


Electronic Control Unit, An engine control unit (ECU), most commonly called the powertrain control module (PCM), is a type of electronic control unit that controls a series of actuators on an internal combustion engine to ensure the optimum running. It does this by reading values from a multitude of sensors within the engine bay, interpreting the data using multidimensional performance maps (called Look-up tables), and adjusting the engine actuators accordingly.

Automotive ECU is to convert stored procedures chip in simple, replace the programmed chip, as long as open the backplane of the ECU and unplug the original chip and then put the new chip , as some older E-ROM chip only can write just one time, every time you modify the program you must turn the program of original chip into a blank chip and then replace the original chip. If you want to have a program modified by yourself, you need a ecu programmer.

May 12, 2012 | Cars & Trucks

1 Answer

How much damage can a performance chip do


Performance chips likely don't harm anything... basically they alter the fuel and advance curve of the engine. Depending upon how the vehicle is used, sometimes they can give slight performance enhancement and even better fuel mileage.
If you do some research on them though, most of the advertised gains are so far out of the usable rpm range that the cost/benefit of a chip is downright foolish. (will a hp and torque increase at 4,000-5,000rpm help when the engine rarely sees that?)
On older GM vehicles a cheap performance gain could be had by swapping a chip from a heavier vehicle (like a Cadillac chip in a nova) That makes the computer think its moving a heavy vehicle and adds lots of power on the bottom end. (don't know if you can do that anymore though)
Bottom line is that they wont hurt anything but often won't give the advertised miracles they claim.

Feb 23, 2010 | 2003 Chevrolet Monte Carlo

1 Answer

I have 2 Bmw's. The one 330i is manual and the other Automatic. My problem is the automatic 330i holds back on the power, really holds back on power. Sometimes it wants to perform and sometimes when you...


check for a wet ecu...
read below on the e36

the ecu compartment is under the windshield on the passenger side on E36

you gain acess to it under the hood....
this compartment gets wet, the ecu lays on a flat surface in that
compartment.

the bottom side of the circuit board gets wet and starts corrosion.

remove the ecu, take the bottom plate off, clean the bottom of the circuit
board with alcohol and a soft tooth brush.

you should be able to see the signs of corrosion or conductive build up.

this gunk bridges solder points doing all sort s of wierd things to your
car, including false sensor readings from asc/abs controllers and other
sensors....

all the way to engine failure and worst case burnt and shorted wiring
harness.

I'm on my 3rd ecu, took me and the repair boys a few years to figure this
one out.

BTW: i would get that ecu mounted above that flat surface, use some sort
of standoff to raise it so that it is not laying in the wet.

Dec 27, 2009 | 2001 BMW 330

2 Answers

Performance improvement


Take a look under all of these for your favorite.
http://search.yahoo.com/search?ei=UTF-8&fr=yfp-t-501&p=performance+ecu+chip+for+Infiniti+G37&SpellState=n-3920992296_q-e33h7gfYtciS2MSqKGkcSgAAAA%40%40&fr2=sp-qrw-corr-top
Also try ebay. You want a DIRECT ECU wiring chip not a intake resistor. Should increase Horsepower and torque around 20%.

May 16, 2008 | 2008 Infiniti G37

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