"hiccup" in my engine?
10-11-2007, 06:05 AM
#1
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"hiccup" in my engine?
Hey all...I suspect this may have been covered before but I could not find it with a KWS so here goes. We just moved to CA with my APR SW 2.0. I ran all the 93 Octane out of my tank (
) and then found some 100 Octane place and filled it up. I was able to put in about 11 and a half gallons so it was not QUITE empty but I switched to the 100 Octane program anyway. I didn't notice a big difference but I was just driving around town. I did notice a couple times the engine would, what I'd call, 'hiccup", that is, power cut back and then come back. It was never for more than a second but a little concerning. I ran through the 100 Octane tank pretty quickly and had to go back to 91 Octane so switched my program to 91 Octane. On a drive back to San Diego from LA I noticed that 'hiccup' several times again. The engine always came back but has anyone else experienced this? I understand why something like this MIGHT happen with the 100 Octane program if the tank wasn't entirely 100 but why would this happen with the 91 Octane program when, at worst, there was mosly 91 and some 100? Or is it just the mixing? Anyone else?
TIA!
) and then found some 100 Octane place and filled it up. I was able to put in about 11 and a half gallons so it was not QUITE empty but I switched to the 100 Octane program anyway. I didn't notice a big difference but I was just driving around town. I did notice a couple times the engine would, what I'd call, 'hiccup", that is, power cut back and then come back. It was never for more than a second but a little concerning. I ran through the 100 Octane tank pretty quickly and had to go back to 91 Octane so switched my program to 91 Octane. On a drive back to San Diego from LA I noticed that 'hiccup' several times again. The engine always came back but has anyone else experienced this? I understand why something like this MIGHT happen with the 100 Octane program if the tank wasn't entirely 100 but why would this happen with the 91 Octane program when, at worst, there was mosly 91 and some 100? Or is it just the mixing? Anyone else?TIA!
10-11-2007, 08:31 PM
#4
I seem to recall my service advisor mentioning something about fuel pressure delivery problems
showing up on some 2.0T engines. Not sure of the details. Sorry. But idle is rough, engine sometimes needs excessive cranking to start, etc.
10-12-2007, 05:02 AM
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...thanks...mine actually is running just fine and no problems starting...
just a "hiccup" or a quick drop in power for a second while accelerating then back to normal...maybe it was just the mixing of fuel?...
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10-17-2007, 03:38 PM
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...weird...I'm still getting the "hiccup" but I've isolated it...
ONLY happens when I'm driving uphill....and as opposed to Miami where I came from where I could go MONTHS without a hill, here in San Diego it's a mltiple times a day occurence!
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