View Full Version : rpms drops when I stop
08-27-2003, 12:58 PM
I just recently installed MSD 6A Ignition on my 2002 S10 4.3L., I have everything stock...It used to idle at 600rpm....I runs great, until I come to a complete stop then it just idles about 400 and dances up and down...seems like there is a missfire of something...am I missing something from my ignition kit..thanx
08-27-2003, 04:48 PM
Checks the plugs wires for arcing, and also if possible check fuel pressure, it may be possible with the fuel pressure on the low side, it may be a lean condition. The idle surging may be the ECU trying to compensate for RPM drop to keep the engine running.
08-28-2003, 05:24 PM
I checked the wires, they are all fine. I really don't know how to check the fuel pressure..?
08-28-2003, 05:36 PM
Also, my spark plugs at set at .060 did I need to regap them???thanx
08-29-2003, 09:23 AM
If the factory gap is .060 then you should not have to regap. The fuel pressure is checked through the fuel rail. There should be a shrader valve where you can connect a fuel pressure gauge. Consult the manufacture for the fuel pressure specs.
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