Originally Posted by Hawker
just the in tank and the bowl at the motor. easiest cure to the surge is a wicked wheel, but the combination of what you're decribing almost sounds like a fuel supply problem, like a fuel pump or something like that.
He is not describing Turbo Surge which is what the WW is suppose to prevent.
He is talking about engine surging, which can be caused by fuel supply problem, bad injector, bad cps, or other problem that needs to be found.
You need a diagnostic scanner that is capable of doing KOEO and KOER tests. As well as scanning for DTC's.
Once you have the diagnostic scanner. Scan for DTC's, if none are found then do an injector buzz test, if it passes the injector buzz test, continue with a Cylinder Contribution Test. If it passes the Cylinder Contribution test and no trouble codes are found. Then I would suggest replace the cps.
But I believe the problem will be found with the diagnostic computer and running those two tests.