High Idle


Asked by Apr 04, 2016 at 06:51 PM about the 2009 Chevrolet Malibu LTZ

Question type: Maintenance & Repair

I got my oil changed a few days ago and on this
past Saturday I cleaned my throttle body and after
I did that the car started running a high idle.
There's no leaks and i can't  figure out what the
problem is.This issue is causing my car to fail
emissions. Please help.

10 Answers


What did you use to clean the throttle body? Is the check engine light on?


I used Throttle body cleaner and yes the light is on


I received two code. P0010 and P0171. I changed the camshaft actuator on the intake last year and it worked and I was able to get my emissions.


OOps most likely fouled up one of the servo motors in the body, try a parts store and get the code pulled and write it down then repost back here and we can go from there.


Welp... I put a brand new alternator in and my car just went out. The engine feels hotter then usual. The battery light came on but I was told that the alternator charges the battery. Please help


With it idling faster it will feel warmer than usual, so I must be missing something, you cleaned the throttle body to fix a high idle problem, or you now have a high idle cause you put on a new alternator?


I cleaned it because I received two codes P0010 and P0171. So after I cleaned it that's when the RRM meter went up to 3000(High idle).


The P0010 is the camshaft actuator circuit bank 1 and the P0171 is lean bank 1. So cleaning the throttle body would only cause the lean code to get stronger. Have you performed the throttle body relearn procedures? I believe it is number 4 in the shop manual for Malibu.


What's the relearn procedures?


Procedure 4 Throttle/Idle Learn Description The engine control module (ECM) learns the idle position of the throttle plate to ensure the cor- rect idle. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. The idle may be unstable or a DTC may set if the throttle position is not learned. Conditions for Running the Throttle Learn Procedure • DTCs P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113, P0506, and P0507 are not set. • The engine speed is between 450-4,000 RPM. • The manifold absolute pressure (MAP) is greater than 5 kPa. • The mass air flow (MAF) is greater than 2 g/s. • The ignition 1 voltage is greater than 10 volts. Throttle Learn Important: Do NOT perform this procedure if DTCs are set. Refer to Diagnostic Trouble Code (DTC) List - Vehicle. 1. Start and idle the engine in PARK for 3 minutes. 2. With a scan tool, monitor desired and actual RPM. 3. The ECM will start to learn the new idle cells and Desired RPM should start to decrease. 4. Ignition OFF for 60 seconds. 5. Start and idle the engine in PARK for 3 minutes. 6. After the 3 minute run time the engine should be idling normal. Important: During the drive cycle the check engine light may come on with idle speed DTCs. If idle speed codes are set, clear codes so the ECM can continue to learn. If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles. 7. After the drive cycle, the engine should be idling normally. If the engine idle speed has not been learned, turn OFF the ignition for 60 seconds and repeat step 6. 8. Once the engine speed has returned to normal, clear DTCs.

Your Answer

Add photo

Related Questions


Looking for a Used Malibu in your area?

CarGurus has 71,907 nationwide Malibu listings starting at $1,300.


Search Chevrolet Malibu Questions

Chevrolet Malibu Experts

#1 tenspeed
Reputation 1,820
#2 T_S_T
Reputation 1,450
#3 Tom Demyan
Tom Demyan
Reputation 1,120
View All

Related Models For Sale

Used Chevrolet Impala"
879 Great Deals out of 35,448 listings starting at $795
Used Honda Accord"
1,250 Great Deals out of 78,336 listings starting at $1,395
Used Ford Fusion"
1,376 Great Deals out of 79,171 listings starting at $1,450
Used Nissan Altima"
1,360 Great Deals out of 87,114 listings starting at $1,195
Used Toyota Camry"
1,574 Great Deals out of 97,342 listings starting at $895
Used Dodge Charger"
658 Great Deals out of 30,073 listings starting at $1,995
Used Nissan Maxima"
431 Great Deals out of 23,763 listings starting at $1,500
Used Hyundai Sonata"
960 Great Deals out of 51,545 listings starting at $1,200
Used Kia Optima"
569 Great Deals out of 32,292 listings starting at $1,000
Used Chevrolet Camaro"
798 Great Deals out of 39,007 listings starting at $2,650
Used Honda Civic"
1,107 Great Deals out of 57,777 listings starting at $1,295
Used Chevrolet Equinox"
1,489 Great Deals out of 66,864 listings starting at $900
Used Chrysler 300"
560 Great Deals out of 21,297 listings starting at $1,490

Used Cars For Sale

2015 Chevrolet Malibu LTZ For Sale
21 Great Deals out of 616 listings starting at $12,891
2014 Chevrolet Malibu LTZ For Sale
7 Great Deals out of 223 listings starting at $12,687
2013 Chevrolet Malibu LTZ For Sale
17 Great Deals out of 409 listings starting at $8,995