QuestionI had the codes read at advance auto parts and the codes came back: PO442, PO455, P1193, under voltage, right rear wheel speed signal malfunction??? What can I do about these codes?
thank you for your help,
Angi
AnswerHi Angie,
The O442 and 0455 codes are about the system near the fuel tank which collects and recycles gas vapors to the engine in order to prevent the vapor leaking into the atmosphere. They report that there is a leak in the system which most likely is simply a loose clamp on one of the hoses that connect the various parts of that system together, or a hose could be cracked/leaking. An inspection from under the vehicle should reveal where it is located, for repair.
The 1193 code is about the inlet air temperature sensor which is a small device mounted at the edge of the corrugated pipe that runs from the front of the van to the point on the engine where the intake manifold/throttle body is located (left front of the engine). It is a small electrical device with a 2-wire electrical plug (wire colors are (derk blue/dark green and dark blue/light green for identification). You can inspect the device to be sure the plug is attached to it, and that the wires are not damaged along their pathway to the nearby harness. If that looks OK then you could buy a new sensor to replace the old one.
About the rear wheel speed sensor, again that is an electrical device mounted on the rear wheel brake plate and which also has an electrical plug and a harness of wires. The manual shows the part location and describes how to disconnect, remove, and install a new sensor if needed.
I can send you the pages which show these various systems by a email that I would send to you directly. You can then show them to a handy-person or shop for assistance in making the repairs quickly. Let me know your email but don't use the @ symbol, instead us "at" or it will be erased.
Please read the PS (below) and respond to it.
Thanks,
Roland
