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Posts Tagged: P0452

P0452 P0841

Fix code P0452 P0841 P0452 or P0841 trouble codes on Journey, Chrysler Sebring, Avenger, Town & Country, Dodge Caravan, Grand Caravan Chrysler has issued a technical service bulletin (TSB) 18-034-08 REV D to address trouble codes P0452 Evap Pressure Switch Stuck Closed and P0841 Pressure Switch Rationality. If you own one of the vehicles listed below and have either of these trouble codes, first perform the diagnostic checks shown in the shop manual. If the components check out ok, take the vehicle to the dealer for a PCM reflash with … Read More

Evaporative Emissions System Primer

How does an evaporative emissions system work? The Evaporative Emissions System is responsible for preventing fuel vapors from polluting our air. If you came to this post because your vehicle won’t fill with gas, skip to the bottom of the post In the old days gas tank caps were vented to the atmosphere. That allowed outside air to enter the tank as you used up the gas inside the tank. On warm days the gas expanded and gas fumes vented backwards through the vented cap to the atmosphere. In other … Read More

P0451 P0452 P0453 P01454 Honda

Fix code P0451 P0452 P0453 P01454 Honda Shops are reporting a string of P0451 P0452 P0453 P01454 evaporative emissions codes on some 2002-04 CRV vehicles. These codes relate to the fuel tank pressure sensor that’s used to test for a leak in fuel tank vapors. The problem is most often a bum sensor.Honda has redesigned the sensor and given it a new part number #04101-PPA-A00. The new sensor is built into the evap canister bracket. That means you’ll have to remove the evap canister and the old bracket to make … Read More

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