Finally got the Sniper efi installed. First start up a couple of weeks ago.
Took it for a test drive last saturday.
The of idle bog is gone. Snappy throttle respons. Quite a difference from the 750 edelbrock carb. Can’t wait for the spring to arrive.
Hello swedefish,
Great news....
Just some things that you should keep in mind when first starting out with a Sniper.
Dont just run out and update the software / Firmware unless there is a problem. If you read the revision log (
https://documents.holley.com/techlibrary_sniperefirevisionlog2.pdf)
There is not much gain to updating if you understand the changes that they made. Sometimes the process fails and then the ECU / handheld locks up and you cant upload it (ERROR 13 or 32). NOTE: Holley does not include the exact changes in the revision log but gives a layman's description.
I have several cars running just fine with the software that Holley loaded at the factory.
If running a PCV you should install a "Fixed oriface type" like the PCV1009. The PCV1183 has the plastic elbow to install on the PCV1009. This will help idle, cruise, and return to idle.
Don't go crazy trying to get the IAC at around 2 to 8 on the first try... Set it then drive the car and see where it reverts to at idle.... Keep doing this until you can get it to the desired setting... Do small turns on the idle screw then drive it... This process may take numerous times but in the long run it works...
Each time you drive the car you should start a datalogging session. This way if something goes array you have a snap shot of what the ECU was doing at the time... Its free info and helps in the long run for tuning... Best way is Turn key on, Screen boots up, Start Logger, Wait 10 seconds, Start engine then revert back to the monitor screen.
Back up the CONFIG file to the SD card regularly. This way you have a good file in case any thing happens.
Back up the SD card to your computer each time you save the config file also.
Refrain from transferring the learning to base until you have driven the car for a couple hundred miles.
Hope this helps.
Happy Mopar
Arron
