If idle is still unstable, raise the target idle speed to the lowest possible point where idle stability exists and repeat steps 14. Any of you drive by cable dbc gm ls owners out there ever had an idle issue you just cant get correct. So far adjusting the cam timing has yielded some good results, most noticeably from 3500 6500 rpms. For crank relearn, part of the task is to goose the throttle and hit the revlimiter. Idle tuning the following is a collection of idle tuning notes, tips n tricks and how2s for idle tuning a big cam or any cam for that matter that i used when dialing in my 248254. This tech tuesday video will teach you how to upload and download a tune file as well as changing your tire size using. After settling for about 45 seconds, the idle will hold itself at rpm.
Well go over each below for their purpose and how to utilize them. Hp tuners mpvi2 and pro feature set with pro link this package gives you the latest in hp tuners technology. I have tried adjusting the idle airflow up and down without much luck and further tried to tune the over under speed spark and proportional and integral settings. I disconnected the hp tuner cable from the car while i did the tps relearn. Finally got case relearn to work hptuners s10 forum. Big cam runs rich or it doesnt right at allsuggestions. Cost to license is 10 credits and an internet connection will be required.
As you can see in the screen shot below i can make quite a bit of boost right off idle. To perform a crank relearn please follow these directions carefully. The removal of electrical power from the engine erases idle memory from the pcm, the computer where it is stored. Nissan idle relearn snapon diagnostics product forums. If your idle is too high do the relearn with the vehicle in drive. They were able to make a beta version of vcm suite that works for tracking cam movement on my application. Hp tuners vcm suite is designed for both the home enthusiast and the professional tunershop that tune gm, ford, and dodge. Now enhancing these to new heights with a new feature rich vcm editor and vcm scanner.
Its great to see just how slow the idle trims move and see why most people have trouble tuning idle because they never wait long enough for the trims to adjust. These controls are live and make changes instantaneously. In fact, i believe the holley hpdominator ecu is more sensitive to idle tuning idle algorithm, than the commander 950 is. The target idle and timing adjustments must be at zero no correction for the relearn to complete. Keep the brake pedal depressed during the entire procedure. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Im at 1500 1600 rpms, 25% throttle, and im making 5psi of boost. When trying to relearn the idle air volume on a nissan there are a couple things that you need to check if it wont complete. Simplifying your search query should return more download results. Engine idle refers to the lowest rpm or speed at which the engine turns.
If you choose to follow any of these how2s, please do so at your own risk. With the hp carb you should have a good enough idle circuit to idle clean at the higher speed. Hp tuners 7 downloads zedload download software, tv. To improve search results for hp tuners try to exclude using words such as. This has two useful functions for your mustang that may be needed in certain circumstances. You will be prompted to enter in an application key. An example of this command is the reset fuel trims. Whats the difference between this and a crank relearn. One of the areas we see a lot of people struggle with when reflashing gm vehicles is with idle performance. Hp tuners downloadkeeper download software, tv shows. Slowly accelerate the engine to 4000 rpm or indicated rpm for your vehicle. For some reason that nobody can really explain, the interface introduces a 0. Taking into account the feedback and suggestions from our customers, also with the help of hp tuners and the tuning school, we have a clear understanding of how to tackle the grey area of what might be a tuning or software issue.
Each car has a unique iac value that takes into account the condition of the sensors, air and vacuum passages, etc. The engine fires up fine, and with some throttle will idle nicely at 1200 rpm. Now enhancing these to new heights with a new feature rich vcm editor and vcm scanner, coupled together with the latest generation mpvi2, this is only tuning and diagnostic solution youll ever need for your modern obdii vehicle. Gm hp tuners learn at home course why people love it. Russk idle config and startup airflow tuning with hp tuners.
I recently spent several days reading books about efi idle tuning and improving my engines idle quality. Right after 3,740 rpm, the ecu snapped the throttle back to idle. In this log i was on the highway going up a hill in 5th gear and just tipped the throttle a bit to climb the hill. Years of success and experience in the automotive tuning industry gives us the competitive advantage to stay ahead of the market, innovate and adapt to tomorrows technologies today. If they were modified in any way, download a stock tune for your car from, and use the compare function to verify theyre stock. Select and enable crankshaft variation relearn procedureusing scan tool.
Hp tuners mission statement the mission is to provide the most complete, cost effective tuning and data acquisition solutions for enthusiasts and professional shops. In the forum you will find an informative tech area, a place for members journals, vendors with special members pricing, and monthly contests. Its best if you avoid using common keywords when searching for hp tuners. Release throttle to idle position once ckp fuel cut off is activated and engine starts to decelerate. Currently it is connected via the mpvi interface which is a right pain in the arse. Mpvi2 pro feature set learn more here pro link learn more here package the mpvi2 together with vcm editor and vcm scanner, which make up the essentials of vcm suite, and you have. Hp tuners, the home of vcm suite and the mpvi since 2003. Ls1 with 799 243 heads, and thumpr camshaft cpg nation. Engine has to be up to at least 158 degrees ferenheit. Jon and the rest of our tuning team have been working with both factory and.
Idle tuning after cam swap with hp tuners duration. I was also able to dial in my idle so nicely and get the timing perfect on it to where it uses. Use the information on this website at your own risk, can not be held responsible or liable for damage caused to your vehicle or various engine and transmission computers as well as personal computers. Turn the ac on and allow the engine to idle for at least one minute. Sometimes with basic out of the box carbs they will get even more rich once you turn the idle up enough to uncover the transfer slots,but the hp carbs are pretty well sorted out in that regard. Start the vehicle and place it in drive at, or neutral manual. The problem with faking out the prndl switch as just mentioned is that for some reason the transition time to indicate park and ingear is. Hi guys, i am struggling with the idle on a 2010 camaro with an ls7, large 240250 cam, msd intake, headers, exhaust. Should you wish to change the vehicle your ecm is installed in, you can now send us your already hp tuners modified ecm with your new vin and we will reprogram and return to you. The ecm uses nonvolatile memory to keep track of the iac position when the engine and ecm are turned off.
The vehicle may need to be driven for 10 miles 16 km or more to relearn the idle and fuel trim strategy. The product is easy to use and has many powerful features usually found in custom tuning shop software. Tuning idle igotasti is an online forum and community for all subaru wrx sti enthusiasts. Idle tuning gm lsx engine with mild cam using hp tuners. I download an enhanced maf os and the real time tuning. You can see the stit and ltit adjust as you move the raf up and down in real time. Finally, i watched gm beginners tuning guide, a dvd by greg banishs calibrated success and sold by summit racing.
Also included is driveability tuning, which is idle and part throttle maf. If you performed steps properly and your engine is able to idle smoothly, goose the throttle while at idle and note what your engine does. Guys, here is the procedure i have been following when idle tuning an ls2 car with cam or whatever upgrades that warrant having to fix the idle. What is the idle relearn procedure answered by a verified mechanic for honda. A beginners guide to tuning gm vehicles with hp tuners software, offered by the tuning school of odessa, florida. Hp tuners was added to downloadkeeper this week and last updated on 21apr2020. Hp tuners target idle tuning for mild to large camshafts hp tuners cam tuning how to. Many downloads like hp tuners may also include a crack, serial number, unlock code or keygen key generator. Exhaust note is more angry and it seems to pull harder. Allow vehicle to idle for one minute in n position. Many newer cars with powertrain control modules pcms have to relearn engine idle after a battery is disconnected. Ensure the engine is at normal operating temperature ect 65c. Under the vehicle functions option on your tuner there is a listing for special functions. With experience doing custom dyno tuning using handheld tuners as well as standalone systems members of our crew were some of the first to tune supercharged jeep jks and cut our teeth on corvettes and trans ams.
Idle tuning part 12 hpt base idle speed settings youtube. Decelerate to a stop, allowing vehicle to downshift, and use. Idle tuning hp tuners gmhp tuners practical demonstration. Hp tuners now supports the 202018 porsche 991 gt3 and gt3 rs. I finally achieved, what i consider, an excellent idling engine. If using a maf sensor, only tune the idle and part throttle areas of the ve table, 4000rpm and below. Run the engine until the cooling fan has cycled on and off, or for a maximum of 10 minutes. However, without the gear select type change, you should be able to ground blue 32 and blue 34 to accomplish the park signal for the sake of crank learn. Custom tuning has been a passion for the rpmextreme crew. Example showing real time modification of the base raf table during idle. This is what your default table display will look like. Before you drill a hole in your throttle body, before you toss some odd numbers like commanding a 1500rpm idle at your tune, or before you just deal with a terrible idle that you cannot seem to get ironed out, take. You can find it in your start menuprogramshp tunersvcm editor. Gm idle relearn procedure perform the following relearn procedure for the onboard computer to adjust to the new idle position on the electronic throttle body.
Restart the engine and again shift into drive or neutral. Gen iii speed density ve table and maf tuning instructions with a wideband o2 sensor create by 69lt1bird jeff anderson 1 these instructions are written for the beginner and intermediate user of hp tuners software. New downloads are added to the member section daily and we now have 358,878 downloads for our members, including. The kam or keep alive memory is the memory that is stored in the powertrain control module pcm. Accelerate at normal throttle position 2050% until vehicle. The idle learn procedure when youre having problems, the first thing worth trying is the idle lean procedure. The engine revs up and then decelerates toward idle smoothly and steadily and returns to the target idle without overshooting or undershooting the target idle. Fuel enrichment at part throttle boost tuningtuners. You should have received your application key via email after you placed your order or inside of the box with your interface. Im hoping you can help me with idle tuning this engine using hp tuners. We use cookies to give you the best possible experience on our website. Hold rpm until engine speed drops back toward idle. By the time i pay to have it done im 34 of the way to hp tuners. In the event you are experiencing an erratic idle after loading a tune or after performing any action that clears kam keep alive memory, an idle relearn can help you get back on track.
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