Developed a problem that includes an idle that drops down to around 400 RPMs then goes back up from cold start. Also has a definite tip in hesitation as soon as it's given gas. Getting no codes and disconnecting various sensors doesn't improve anything. Also will backfire into the intake depending on how fast the throttle is applied.
Hooked up a vacuum gauge and it's a steady 15 in/hg which is low. Plugs are in good shape as are the wires. Distributor has been replaced and still no change. This has been steadily getting worse as it used to just hesitate but now the cold start idle is hunting.
Hooked up a vacuum gauge and it's a steady 15 in/hg which is low. Plugs are in good shape as are the wires. Distributor has been replaced and still no change. This has been steadily getting worse as it used to just hesitate but now the cold start idle is hunting.
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