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Injector cleaner


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Hi, Boxster 2003 2.7. I have some hesitations at low RPM when I hit the gas. I did change the spark plugs, the air filter, clean the throttle body (it was in great shape) so my AOS is still ok, I did clean my MAF sensor and still that small hesitation. No CEL at all. So before spending money on a new MAF, I would like to try an injector cleaner. Do you think it can help? If yes, what product are you using?

Thanks a lot!

Thierry

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I doubt injector cleaner will help unless you have been using dirty fuel or there are a lot of contaminents in your tank for some reason. It's worth a shot though. My favorite product is Sea Foam. I've used it on some really messed up cars and it helped noticable!

Just cleaning the MAF isn't necessarily fix in itself - you could test the MAF with a voltmeter to ensure that is it working properly. You could also test running the car with the MAF unplugged. If it doesn't hesitate with the MAF unplugged, then the MAF is likely the culprit for your hesitation.

FYI, if you run your car with the MAF unplugged, your CEL will come on, but should go off after plugging it back in and driving a while, or you can just reset the CEL after you plug MAF back in.

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