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Old 04-20-2013, 04:50 AM   #25
|-Goku-|
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Join Date: Jun 2012
Drives: 2011 Civic Si
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Quote:
Originally Posted by peachch View Post
I just checked the spark plugs. After driving around 1500mi All ground electrodes look okay but gap of 2 plugs were only 0.5mm. The other two gap increassed to .95mm. Now I have popping sound in intake manifold when high load at low rpm (2500-3500rpm). I suspects one of direct injector seals is leaking.
You still haven't answered a few questions:

1. What type of gasoline are you using?
2. Are you running a tune?
3. Are you running an aftermarket intake?
4. What are all your engine modifications?
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