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Re: Hesitation, bog and backfire
Situation update. Intake manifold was tapped with 3/8 NPT and short galvanized nipple screwed in. Metal coolant line was stripped of compression fitting parts and connected to nipple with piece of 5/8 coolant hose and clamps. About 1 1/2 gallons of coolant were needed to top it off. Engine started fine. Because its dark out, I was able to see some arcing from a couple of the plug wires. Hmmmm. These things are less than 2 years old. Test drive showed improvement in drivability, however there was still bogging and hesitation. Only now it seemed to be more of a regular misfire. With vehicle in park, stabbing the throttle from an idle, I could still make it backfire. Next step I'm going to have to replace the plugs, wires, cap and rotor. If this isn't the cure, then I will have to test the fuel pressure.
How do you check the fuel pressure? Do you hook up the pressure guage to the supply line to the TBI? Because the fuel pump is electric, do you just turn on ignition to activate the pump and read pressure?
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