Recent content by heavyhammer

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    8.2 GSI miss fires thru intake

    Okay, this site is amazing and I have already taken advantage of the free advice many times. I am now posting because I don't know my next move. Problem: 8.2 GSI "201" series, charcoal BYCCE s/n with 185 hours. I have a major missfire or stumble right off idle. This happens in the drive way or...
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    2001 5.7 gsi surging and misfire @ high rpm

    I am loving owning a boat. I have searched all the other posts regarding this issue and have tried all the suggestions. I have a 2001 5.7 GSI TBI. I changed out the OEM dist,cap, wires and replaced them with a Mallory dist/cap/wires. I timed it 8* and figured life was good, well its not. The...
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    8.2 gsi hesitates off idle

    Been bending over for hours working on this thing. Have replaced dist, cap, rotor, plugs, low pressure pump,, checked fuel pressures, replaced water/fuel sep. It will start and idle fine but when given a little throttle is hesitates just a bit and sometimes will backfire thru intake. I have a...
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    o2 sensor, should I add one

    Has anyone ever installed an o2 sensor in an older boat that doesn't need/use one? Just thinking about doing it, the only reason would be to monitor fuel/air mixture. I understand it would have to be in the manifold riser and a bung would have to be installed to keep it in the exhaust and out of...
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    Which scan tool to buy

    I have a 99' 8.2gsi with the MEFI 1 ecm. I am having a little trouble getting it to run right. I am looking to buy a scan tool and possibly a tuner. I have been looking at the Rhinda diacom software, and the OBD Mefi scan/tune. Does anyone have any opinion on these products
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    base timing on 1999 8.2

    Trying to put our boat back together. Stock cam, new lifters, new rockers, new springs, ecm reprogrammed. We are having a heck of a time getting the timing right, wondering if there is something else wrong. Gone through base timing procedure, can't even get engine to idle unless its advanced...
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