Hello, i have an hyundai car XG3000 that detected code p0172 and p0106.

SOURCE: check engine light on,running rough code P0172

When I see all these codes i instantly think of two things. Vacuum leak especially intake manifold gaskets and Mass air flow sensors. Spray the engine with carb cleaner when its running and see if you get it to rev up,run rough or run different. Next unplug the MAF and drive the car, see if it runs normal.

SOURCE: car wont start, got code p0172, got fuel, spark

PCM detect an excessively rich condition

SOURCE: check eng light came,codes P0106,P0172,P2188.Where

hi, the oxygen sensor or lambda sensor for its proper name is located in the exhaust it will either be before or just after the catalitic converter it will have two wires going to it and its just bolted into the exhaust downpipe and the wire connects to the wiring harness near the engine itself, the sensor itself is not cheap to buy but you can replace it yourself make sure you check the exhaust for damage leading up to the sensor as any damage to the exhaust such as a whole in exhaust can cause the sensor fault you have been getting if their is no fault with the exhaust then change the sensor and this should then solve your problem.

Let me know how you get on or if you need further assistance ok

Mike LaPres

• 757 Answers
• Posted on Jul 08, 2010

SOURCE: have code problems

Resetting the security code will not help the car start if you have a TPS (throttle position sensor) problem.
If the TPS is far enough out of position or has a faulty electrical connection then the proper voltage by the TPS cannot be read by the engine computer to thus calculate fuel mixture and spark timing.

Considering the rest of the DTC that you are seeing, it is highly suspect that you have a simple break in a wiring harness. Check your wiring and sheaths to all of your sensors up to and including any corrosion or breakage on the connectors, all the way back to the multi-connector on the computer.

SOURCE: Check engine light came on and is giving codes

check for a broken vacuum hose or vacuum fitting(s). you can use a can of spray carb cleaner. while running the engine use the spray to test hoses and fittings. give a little squirt to suspected areas. The idle speed will change when you find a vacuum leak. pay particular attention to the hose to the MAP sensor. There may be a problem with the elelctrical connection to the map sensor, or the sensor itself may be bad.

Manifold Absolute Pressure Sensor