I have a p0712 code and I cant figure out what it is . I have replaced maf sensor and o2 sensors the check engine light won"t go off .Can't afford to do anything else right now but still want to know what it is. What do I check and how?
2006-11-16 15:37:48 · 4 answers · asked by treemanwannabe 1 in Cars & Transportation ➔ Maintenance & Repairs
I believe you might mean P0172 because 700s are transmission related. Anyway, If it is a P0172 - System too rich code, I would check to make sure the fuel pressure is within specs. If it's not, then their could be a problem with the fuel pressure regulator. Depending on the vehicle, it could be at the rail or remotely located with the filter.
2006-11-16 17:35:00 · answer #1 · answered by Marc87GN 4 · 0⤊ 0⤋
This is a trick I always use to find a vacuum leak. BUT BE CAREFUL. I connect a rubber hose to the end of a small handheld propane tank/torch, then I turn on the propane and while the engine is running, I scan all the hoses with the propane. If you hear the engine speed change at a certain location, the propane if being sucked into the engine. That is where your vacuum leak is.
2006-11-16 21:22:28 · answer #2 · answered by polaris1026 1 · 0⤊ 0⤋
Disconnect the NEGATIVE battery terminal for a couple minutes to clear exsisting codes.
The easiest way to check hoses, is with you eye's and fingers.
2006-11-16 15:46:49 · answer #3 · answered by Mr. KnowItAll 7 · 0⤊ 0⤋
get a vacuum tester and check that, and find the pcv valve on the motor and shake it, if it rattles freely its good, if its gummed up get a new one
2006-11-16 15:49:47 · answer #4 · answered by tim s 3 · 0⤊ 0⤋