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2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
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<blockquote data-quote="mhyjek" data-source="post: 15691575" data-attributes="member: 140246"><p>How many miles on the car? I would try some CRC GDI cleaner if over 10k. Direct injection is great but intake valves stay dry and don't get fuel washed with detergents can build up some carbon. When I had my 13 mustang I was using methanol so never had to worry about this. In my DD now 2.0t 15 sonata at 15k my car had a very noticeable cold start, part throttle hesitation, and drop off in mpg's. One can of the GDI cleaner followed instruction all was good. Now at 30k coming back will have wash and repeat.</p></blockquote><p></p>
[QUOTE="mhyjek, post: 15691575, member: 140246"] How many miles on the car? I would try some CRC GDI cleaner if over 10k. Direct injection is great but intake valves stay dry and don't get fuel washed with detergents can build up some carbon. When I had my 13 mustang I was using methanol so never had to worry about this. In my DD now 2.0t 15 sonata at 15k my car had a very noticeable cold start, part throttle hesitation, and drop off in mpg's. One can of the GDI cleaner followed instruction all was good. Now at 30k coming back will have wash and repeat. [/QUOTE]
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2015+ S550 Mustangs
5.0L Coyote V8 Engine Modification/Discussion
Problems with surging and driveability - datalog attached
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