Thanks for sharing the video. Interesting to see you do it and hear the owner's thoughts but the video chops for me just before your conclusion. I've looked at quite a few of these sprays and they mostly seem to be acetone as the active ingredient (certainly for diesel engines anyway). I'm not a chemist but I think that acetone must be the best solvent for carbon without damaging any alloy parts of the engine (which the foaming oven cleaners do). With that Jetta having 250k miles though, then unless it has been cleaned previously it's going to be really coked inside from the EGR onward and I think just one treatment is a lot to ask. Has either of you considered the alternative of fitting a cheap / used water injection kit for the cleaning properties? You don't need any of the expense / complexity of the full bore performance kits. A spray nozzle in the intake pipe somewhere after the maf and mist in a non-flammable mixture of water and alcohol (basically similar to some ready mixed cold weather screen wash) into the intake when the engine is on boost. People do it to make the engine run better by cooling the charge, but they say that a side effect is that over time it cleans everything in the intake, then the back of the valves and the top of the pistons. It all sounds a little too easy and I've never done it myself so honestly can't say if it works or not, but in the simple kits a pressure switch in the inlet manifold means it only pumps on boost and there doesn't seem a lot to go wrong. Maybe something to consider as a project if he plans on keeping the car long term?
Dear sir I used the same on ecosport diesel 2018 facelift after maf sensor but there is turbo after the same i used it on that 75% of that bottle but after that i saw very little white haze so in terror i stopped the process and also engine malfunction light having wrench turned on so i turned off engine and reconnected the hose to turbo after and turned on engine after 1 minute or so light disappeared. Now question is did i do it right or wrong spraying it on turbo as there was only turbo after air filter and maf sensor? If right then why theres white haze and malfunction light? And if wrong how deep trouble i am in? Please reply please Thanks for your help
as far as i know error can occure because maf on intake measure less air than actualy reaching the engine, that's normal if intake its keep open with engine on. this product its supposed to be sprayed before the turbo, meanwhile the intake cleaner de-carb AFTER the turbo
