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G16 mpfi exhaust question

Tech Talk for Suzuki owners.

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Posts: 60
Joined: Tue Oct 07, 2008 3:11 pm
Location: Oldina, North West Tasmania

G16 mpfi exhaust question

Post by Bron5on »

Hey guys, I'm trying to alter my sierra extractors (genie) which i bought new about a month before I decided to swap to a G16 mpfi. My basic plan is to cut the flange off the extractors and get another in the G16 bolt pattern cut and welded on then add a fitting for the oxy sensor. When I removed the factory manifold I discovered another hole in the back of the block which is bridged to the #4 (closest to firewall) exhaust port via the manifold. Where does this go and what does it do?? If I blank it off by just covering it with the new manifold will the engine run better, worse, no change or not at all?? Thanks in advance.

Bronson
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Posts: 176
Joined: Tue Dec 11, 2007 10:10 pm
Location: Perth

Post by scooby_74 »

The small hole in the back of the head is for the EGR valve, blocking it is no problem, most vitara 1.6 injection have problems with the EGR systems creating a low speed missfire, blocking it off is prob better than leaving it open.
93 NJ,5 speed,2" body lift,32" muddies

There's nuttn like momentum
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Posts: 60
Joined: Tue Oct 07, 2008 3:11 pm
Location: Oldina, North West Tasmania

Post by Bron5on »

Cheers matey, that's just what i wanted to hear!
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