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Old 08-19-2009, 11:59 AM
j cAT j cAT is offline
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Re: Misfiring or stumbling under light load

Quote:
Originally Posted by laxman21 View Post
99 burb. 175k.

Started to stumble at highway speed with light gas pedal. Runs fine when under heavier load.

plugs, wire, cap rotor all about a year old. This fixed it when it was doing it before.


Mechanic thinks it the spider injector because he gets some black smoke out of the pipe when accelerating. Leaking extra fuel into cylinder.

Any other suggestions or should I just replace the injector with the updated one?

Edit: no codes or SES light

Should I opt for the cleaning before replacing route?

check distributor ,,,when bearing goes bad rotor wobbles..

if if starts and runs good at idle the fuel should not be a problem..

black smoke on throttle increase usually ignition ...poor spark,,,at the incorrect time...
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