Code PO243

**newmarket23** · 09-05-2012

Hey guys/gals. So My GTP has 239000 kms on it and it still runs pretty good. I have had a check engine light on for about a year now but it was a (rear catalytic code) My car would not pass the emissions test last week so I got a new one put on with a one year warranty. I did pass the test right after I got it put on and the check engine light was off. Which was nice because now I can use my remote car starter. Stupid GM put a blocker that doesn't allow it to work with a light on. I was so looking forward to this with a cold Canadian winter coming soon. Now, that was yesterday. Today as I was driving around my light came on again. I brought it back to the guy pissed off thinking it was my CAT. Turns out it's a code PO243 Supercharger Wastegate Regulator Valve A. Like, did this part get jealous parts syndrome? Now my question, I already know from Gm the part is going to cost me around 800 dollars. Not fun. Is the car okay to drive? I am debating on just buying something new because I don't want problems to keep happening. Your advice and help would be amazing.

**FordMan77** · 09-05-2012

I don't know what year your car is, but at 148000 miles things on ANY car are going to need to be replaced. That's what cars are- a wear item. Aside from that, are you building boost still, or does it seem low? Check the vacuum lines going to the BBV and make sure they are on and tight.

And check for that part on RockAuto.com or somewhere. No way would I pay $800 for that (assuming that is US dollars).

Not sure how safe it is to drive it that way, but I'd say as long as you're not always in boost then its fine.

**newmarket23** · 09-05-2012

I am still getting boost when I give it gas. It shows on the digital display. I will cchecks vacuum lines and hope for the best. 800 was for parts and labour. The part is 525. It's a two piece part

**Fivefingerdeathpunch** · 09-05-2012

Clear the codes and see if it comes back.

Got a picture of the parts?

I checked alldata about the code and really got nothing, no pictures to tell me what it looks like. Maybe its just the supercharger boost solenoid that went, that part is way cheap compared to paying dealer prices on whatever parts your mechanic says you need.

**newmarket23** · 09-05-2012

I have a print out from the dealership with a picture. I could use my phone to take a picture but I have no clue how to post it on here

**Fivefingerdeathpunch** · 09-05-2012

use a photo sharing website like photobucket or whatever and either just link it here or copy the DIRECT link and paste it to the 3rd one over from the smiley face.

**BillBoost37** · 09-06-2012

I'm thinking this is a boost control soleniod circuit issue.

**newmarket23** · 09-06-2012

I think it's number 7 and number 8

**newmarket23** · 09-06-2012

I think it's number 7 and number 8

**BillBoost37** · 09-06-2012

Originally Posted by newmarket23

I think it's number 7 and number 8

I googled for 2 seconds because I know it's not both pieces.
P0243 GM DTC: Supercharger Boost Solenoid Control Circuit Conditions

You may want to research this problem instead of shotgunning parts at it. If the voltage is wrong..then it might not be either of the boost control pieces.

**newmarket23** · 09-06-2012

**newmarket23** · 09-06-2012

Number 2 and 4

**newmarket23** · 09-06-2012

Like I said before, today I drove the car and when I pushed hard I got boost no problem like I did before

**newmarket23** · 09-06-2012

So maybe instead of trying to clear the codes, I could try unhooking my battery for 30 minutes and see if it resets/corrects itself?

**BillBoost37** · 09-06-2012

That is called an intermittent problem. Most often caued by say wiring that moves a little etc.

**newmarket23** · 09-06-2012

Okay, Ill try that after work. Ill unplug the battery and check all the connections. Ill let you know the results

**BillBoost37** · 09-06-2012

How about testing the power with a multimeter while you are checking the connection.

**newmarket23** · 09-06-2012

So I just got in my car to go back to work and the check engine light is off. Weird. I didn't even do anything.

**BillBoost37** · 09-06-2012

Circuit isn't a problem this test.

intermittent.

**newmarket23** · 09-06-2012

So should I just leave it and hope for the best or should I check all the connections? Dielectric grease maybe??

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