[dfreas2010equinox]

Update for all. Huge thanks to HFV6 for their wealth of knowledge. I purchased a cheap multimeter this morning and spent some time playing with it + my scantool to collect some data. Did some more research and went out and got a throttle body. Instant fix

Also I ended up finding the throttle relearn procedure for a 2010 Equinox. Hope this helps for anyone that doesn't have the repair manual.

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. Turn the 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.

NOTE
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.

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 repeat the throttle learn procedure.
Once the engine speed has returned to normal, clear DTCs.

 

[HFV6]

Update for all. Huge thanks to HFV6 for their wealth of knowledge.

Thanks, glad to hear that and glad to help.

HF

 

[SS86Monte]

I am having this same issue Service Stabilitrak and Reduced Engine Power but the only code my 2012 terrain is giving is P228D which comes up as the fuel pressure regulator. Called the dealer got the regulator but I can not find the location on the car. Only other part I can think about is the fuel pump. Ive have asked the dealer and they claim its located on the fuel rail of the vehicle i have not been able to find it ... ANY IDEAS ??

 

[rednox301]

Ive have asked the dealer and they claim its located on the fuel rail of the vehicle i have not been able to find it ... ANY IDEAS ??

Which engine are you working on?

 

[SS86Monte]

2.4 ( 4cyclinder )

I was given the regulator which I have never seen on the car before. I need the second part i believe

 

[spook]

The high pressure fuel sensor is on the rail. It is #1 on the picture

 

[rednox301]

2.4 ( 4cyclinder )

I was given the regulator which I have never seen on the car before. I need the second part i believe

Are you looking for the fuel pressure relief regulator valve?
If so it is mounted on the in tank, fuel pump module.

 

[SS86Monte]

Thank you i am going to look again tomorrow

What the dealer is calling the pump is what the mechanic says the regulator is attached to.

mechanic is claiming the regulator is attached to the pump

 

[SS86Monte]

Fuel Pump

Update :

They changed the fuel pump 2 times already which was covered under my warranty. I have to take it back for a third time because its still doing the same exact thing. P0014, P0297, P0089, and P228D.

 

[dicus30]

Last sunday I had the same thing happen. Codes were p0016, p0089, p0011, and p0016? 2012 Equinox LT 2.4 fwd Im hoping that cleaning the throttle body with cleaner fluid does the trick, on top of oil consumption and now cats need replacement. Im furious

 

[mnewiraq2000]

The high pressure fuel sensor is on the rail. It is #1 on the picture

Hi,
Dear all,

Any one can send me pdf of equinox 2.4l shop or repair manual?



Sent from my BND-L21 using Tapatalk

 

[RIT333]

Hi,
Dear all,

Any one can send me pdf of equinox 2.4l shop or repair manual?



Sent from my BND-L21 using Tapatalk

Nope - That would be against the law, and "we" do not like prison.

 

[rednox301]

Hi,
Dear all,

Any one can send me pdf of equinox 2.4l shop or repair manual?



Sent from my BND-L21 using Tapatalk

I don't think you realize how big the GM Repair Manual is.

 

[RIT333]

I don't think you realize how big the GM Repair Manual is.

Just scan it and send it in an e-mail. LOL

 

[Dagorlad]

I don't think you realize how big the GM Repair Manual is.

Maybe they just want the 2-3K pages of volume 2?

 

[Colt Hero]

They bind the manuals the way they do to discourage reproduction. If it was sold in a 3-ring binder then a pdf could be created very easily. I’ve seen a lot of training manuals produced with the loose spiral binding which *look* like you could just pull the wire out and copy it, but with all those holes down the left edge it would just end up jamming in the machine with tiny fragments of paper throughout the feed path. What you need is a pre-processing auto-cutter, which takes the stack of paper and chops a ~1/2” off the left edge. Then *this* stack would feed through the copier/printer, and you’d have your pdf. But I wonder if - with the (now) 8” wide sheet (vs 8.5”), some text might be missing at the edge?

 

[Carlene]

Thank you Thank you...absolutely fixed the problem changing the Throttle Body. My 2013 Nox service light came on "Stabilititrak" and very little power it was not drivable. Ordered the part from GMpartsdepot.ca for $120 had it within 2 business and replaced it easily took less than an hour my husband gave me the tools and was able to fix it myself.

Can't thank the forum enough, saved me a lot of money doing it myself and it was easy.

Carlene Szotak

 

[Deano Bambino]

I would suspect a faulty throttle body position sensor or something with the wiring for that system, especially after having the major repairs done. If the car idles well at low speeds but not at higher, there is something going on with the fuel delivery from what you say. Low battery wouldn't cause those symptoms I don't think but it won't hurt to have it checked out first.

The cruise won't set with a Check Engine Light on. Other systems will also turn on the lights such as Traction Control and Service Stabilitrak if certain other engine functions are not normal, even if it doesn't actually affect the traction or stabilitrak system as such. A leaky master cylinder code on the Enclave will set off the stabilitrak and traction lights as an example, as will a broken wheel sensor wire on most GM cars.

Low charged battery could most definitely cause these symptoms. If your battery is not putting out enough voltage then it would also follow logically that the engine would have reduced rpm's. Lower rpm's = Reduced High Fuel pressure.

The hp pump on the 2.4 Ecotec is mechanical and electrical. Mechanical because the piston is moved by the operation of the cam lobes and the electrical pressure sensor. If the sensor is bad youll have to buy the entire assembly. They dont sell the sensor sepa Have you ever heard of someone having a bad ground on the battery

I agree with JayTee. Try both of these. I'm not sure if either will work, but it's the most common ones.

1) Put the key in the ignition, and turn the key to the run position, but not start. Wait 3 seconds and turn it off. Repeat this 2 more times.

2) Put the key in the ignition, and turn the key to the run position, but not start. Slowly press the gas pedal all the way to the floor and let it up slowly. Do this three times.

Those are the most common throttle relearn methods. Since you've now got trouble codes and the power reduced message, you might need to start over by disconnecting the battery and resetting the computer. Throttle relearn is sometimes needed after a computer reset too.

Not on an equinox you dont. You start it and let it idle for 3 minutes. Shut it off and wait 10 minutes. Start again and run at idle 3 minutes. Shut off and wait 10 minutes. On the third part of the relearn you start the car and take it out on the highway for 10 minutes keeping plenty of distance between your car and the one behind you. The right lane is the best lane imo. You'll need to drive the speed limit for 1 minute and then alliw the car to naturally decelerate all the way diwn to 20 mph. This allows the transmission to shift down on its own and the ecm recognizes it. Yes, it is part of the relearn process. After you let it decelerate you'll take it back up to the speed limit and hokd for anothet minute. Repeat the deceleration process until it's been done a total of 3 times. It is at this point your system should be relearned. If nit repeat the entire process .

 

[Deano Bambino]

Permanent DTC's cannot be cleared by a scantool. The only way they will clear is when the diagnostic has run and passed in the PCM.

Incorrect. Remove the battery cables for 30 minutes. Make sure at the 10 minute mark you touch both cable ends together and hold 30 seconds. Separate the cables and allow another 20 minutes to pass before hooking up the battery. Yes even hard codes need electrical power to save them in the ecm.

 

[TomasA]

The engine power reduced signal is usually triggered when the ECM of your Chevy Equinox detects an error in the system. The vehicle immediately goes into limp mode (reduced power mode).
That situation is similar to your phone working at a reduced rate when the battery goes below a set percentage. Once the limp mode is on, your SUV will not function normally. The essence of the engine power reduced feature is so you can be notified of a malfunction and pull your vehicle over ASAP.