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Took the truck to the muffler shop, he put a pressure gauge on the exhaust and as soon as he started it, the gauge shot up. Catalytic converter was completely stopped up. Good thing is 77,000 miles, still under warranty.

Not At Idle No Misses And At Idle. I Cna Turn On And Off The Fuel Injectors With The Scanner, Although, When I Turn Off The Odd Cylinders Off, There Is Not As Noticeable A Difference As When I Turm Off An Even Cylinder.

ENGINE MISSING HORRIBLY, CANT GO MORE THAN 25 MPH. CHANGED MAF, PLUGS AND WIRES, STILL NO CHANGE. ENGINE IDLES ROUGH, CHECK ENGINE LIGHT BLINKING. CHECKED FUEL PRESSURE, ONLY 42-46 LBS. CHANGED FUEL FILTER, STILL NO CHANGE. cHANGED FUEL PUMP, PRESSURE STILL LOW. SCANNER SHOWES THAT THE WHOLE...