Jeep Wrangler 2007 Sahara Unlimited Diesel

Question

Hi there,

My Jeep Wrangler 2007 Sahara Unlimited Diesel, has 3 codes being detected by the memo scanner
Codes detected
P0101
P0102
P0299

what may be the cause of all 3 codes please? or what needs changing apart from mass air sensor and air filter?

thanks,

Answer 1

P0101 Mass airflow sensor sensitivity plausibility

P0102 Mass airflow sensor circuit low

P0299 Turbocharger underboost condition

Having P0299 would cause the MAF to work outside its range, P0299 you need to inspect for intake air restriction such as the airfilter and any disconnected air tubes and even intake leaks. this would cause a P0101 which means the MAF is working but it is outside its range for engine management. What throw a curve in this condition is when the ECM detects that the MAF is sensor circuit low, Circuit low are components that shorted out or its sensor signal is shorted to ground. Check the tubes for any opens and clean out or replace the airfilter , clear the code if P0102 re- appears replace the MAF.