P1101 fault code: what 32 owners reported

My chevy stopped while driving. The engine light came on and engine power reduced. The brakes locked up and I could not go anywhere. Code P1101, Vacuum Pump Failure and ECM came up. Financing this vehicle. Have not been able to drive it in 3 weeks.

…Premature Secondary Failure: Just 40,000 miles after that official manufacturer repair, a certified Chevrolet dealership service department formally diagnosed a second total mechanical failure of the turbocharger assembly (Error Codes: P0299 Underboost and P1101 Airflow Performance). Administrative Breakdown: Upon requesting a supervisor escalation due to a combative tier-1 case manager, the manufacturer reactively demanded unauthorized diagnostic fees and prematurely closed the file. General Motors subsequently breached its 24-hour supervisor review commitment and issued a final refusal to address the recurring mechanical defect on its network. Remedy Sought: Full manufacturer coverage for…

SEVERAL TIMES A WEEK MY CAR WILL SUDDENLY GO INTO "ENGINE POWER REDUCED" MODE AND GO INTO LOW SPEED. IF I GET OUT OF THE CAR, LOCK IT, AND UNLOCK IT 30 SECONDS LATER IT WILL RESET AND THEN BE OKAY FOR A FEW MINUTES. THIS POWER REDUCTION IS EXCEEDINGLY DANGEROUS WHEN MOVING AT HIGHWAY SPEEDS AND SUDDENLY NEEDING TO PULL OVER. THE CHECK ENGINE LIGHT WILL COME ON BUT THEN DISAPPEAR SOMETIMES THE SAME DAY AFTER HAVING PARKED FOR A WHILE. TYPICALLY THE CAR GOES INTO THIS "REDUCED POWER MODE" AFTER ABOUT 45 MINUTES OF DRIVING. I WAS ABLE TO CAPTURE THE FOLLOWING ERROR CODES: P1101 (INTAKE AIR FLOW SYSTEM PERFORMANCE), P2122 (THROTTLE POSITION SENSOR D CIRCUIT LOW INPUT), AND P2138 (THROTTLE/PEDAL…

…Diagnostic records also documented DTC Code P1101 following the incident. The vehicle is currently undergoing further inspection and diagnostic evaluation at a certified Chevrolet dealership to validate CPO warranty coverage and determine the full extent and cause of the failure. Based on the sudden loss of engine performance and reduction in brake assist, I believe this condition represents a significant safety risk to vehicle occupants and the public.

MY 2013 CHEVY SONIC DEVELOPED TICKING SOUND SHORTLY AFTER I BOUGHT IT AT 60000 MILES. THE TICKING GOT WORSE OVER TIME AND THEN CHECK ENGINE LIGHT CAME ON. I SCANNED THE CODES AND MULTIPLE FOUR CODES WERE FOUND. P0171, P0496, P1101, AND P2270. AFTER DOING SOME RESEARCH IT SEEMED TO BE THAT MOST CRUZE, SONIC, AND TRAX VEHICLES ALL HAD THE SAME ISSUES. I TOOK IT TO THE DEALER FOR DIAGNOSTICS AND WAS INFORMED THE VEHICLE NEEDED A NEW INTAKE MANIFOLD, PURGE VALVE, PCV HOSE, AND VALVE COVER. THEY CALLED THE DEALERSHIP TO SEE IF THERE WERE ANY RECALLS AND THE ONLY ONE WAS THE VALVE COVER BUT WOULD HAVE TO PAY FOR DIAGNOSTICS TO SEE IF THEY WOULD COVER IT OR NOT. THE BREATHER DIAPHRAGM IN THE VALVE…

…On October 6, 2026, at 197,216 miles, an O’Reilly scan recorded stored P0304 (cylinder 4 misfire) and P1101 (intake airflow system performance). A separate shop’s scanner also displayed stored P0304. These scans document codes, but the cause of the current intermittent problem has not been diagnosed. Another cracked piston or turbocharger failure has not been confir

There is an has been an issue with my electrical system says I purchased this car in 2017. Myself believe that the issues have not been documented until 2020. When my racy begins to run out, my engine light has been coming on and I’ve been getting the same code P1101 I took my vehicle to GMC and they told me that the engine light came on because the tape came loose. I brought this vehicle and there’s no way there should be no tape on it. The service tech also told me that if the problem continue to bring it back and I will have to pay $120 or whatever the label rate was for them to research I contacted GMC to file a complaint and I received the whole bunch of calls from a guy named Kevin. I…

My 2022 Chevrolet Malibu LT repeatedly and unpredictably enters a "Reduced Engine Power" state, causing sudden, dangerous drops in speed while driving in traffic. This intermittent loss of power happens constantly on and off, creating an ongoing and severe safety hazard. A diagnostic scan reveals codes P0299 (Turbocharger Underboost), P1101, and P2227. General Motors has an active Special Coverage Program (N252508360) covering this exact turbocharger failure for 2022 Malibus with the 1.5L engine. However, GM and the local dealership refuse to cover the repair, claiming my specific VIN is excluded from their automated list. I have already replaced the MAF and MAP sensors to eliminate…

When it’s cold outside the air induction signal comes on and comes off. This is the second time I had this service within a year. Mechanics advised me that there is nothing wrong with my vehicle and drives smooth that the code P1101 maybe a recall because they have been seeing it much frequent on Chevy Cruze 2017,2018

'TAMARA RECALL' I WAS DRIVING TO WORK WHEN MY CHECK ENGINE LIGHT CAME ON AND A WARNING SAID 'ENGINE POWER LOSS' AND MY CAR SLOWED DOWN TO 40MPH, I WAS ON THE HIGHWAY, SPEED LIMIT OF 65, I ALSO GOT AND EMAIL SAYING THERE WAS A PROBLEM WITH MY ENGINE AND TRANSMISSION SYSTEM, I TOOK IT IN TO BE LOOKED AT,2 CODES PIPED UP SAYING P1101 WHICH IS THE THROTTLE BODY AND P2318 WHICH IS (APP) GAS PEDAL, MY CHECK ENGINE LIGHT WAS TURNED OFF, IT DIDN'T COME BACK ON FOR A COUPLE OF DAYS, THEN IT TURNED BACK ON, BY THE NEXT MORNING IT WENT OFF BY ITSELF! I BELIEVE THIS SHOULD BE RECALL