dcher

I just got a code P228C which is a fuel regulator exceeded control limits. Pressure too low. The check engine light and the traction control light came on and went into reduced power mode. i drove the car home at 35 mph. I shut her down for about 10 minutes and restarted the car. The check engine light is still on but it no longer seems to be in reduced power mode.

I will take her in but I am not sure if I should have it towed. The reduced power mode is no longer an issue so it seems to be driving OK. Any body have experience with this code?

OBSSSD

Should be fine to drive it in. If the code comes back while driving it in and it goes into limp mode simply cycle the ignition off and back on again and it should clear itself out of reduced power mode.

dcher

Just heard back from dealer. GM issued a bulletin for this code to replace the fuel rail pressure sensor. This likely explains the chugging I was experiencing for the past couple of months while under hard acceleration at high speed. It was driving me nuts. Now I might actually have a resolution. Anybody else with this issue?

foreverfuelie

Just wondering, what's the last 4 of your VIN? What year and how many miles? Haven't had the code and wonder if GM issued a TSB is it for all model year or isolated to a limited number of produced units? I've had "knock on my wooden head" virtually no problems with my semi-early, '15 (#3341) that when I hear of things like this, it concerns me that I need to worry about. I now listen very carefully every time the car is near a wall or in the garage for the tell tale sounds of the dreaded "flex plate" rattle or the knocking PCV line. Keep the radio turned down on the freeway to listen for the differential "whine", etc. Oh well, I guess I'm just getting paranoid. Probably should just keep the hell of the forum's and enjoy.

dcher

Vin 2658. 2015 Z07 A8 built jan20th 2015. 8500 miles. The chugging problem occurred at WOT around 110 mph. The code finally showed up today. So I think this explains my long standing problem and should resolve things. At least GM knows about it and has issued a bulletin.

ElCid79

That's great news. Let us know how it works out!

dcher

Dealer will order part on Monday and should have it installed on Wednesday. When I get her home, assuming it's fixed, I will re-install my Halltech CAI and take a nice long ride. Can't wait to have my HP back. Been going through withdrawals.

SLWRNU

I will re-install my Halltech

Hmmm! Any correlation?

dcher

I doubt it since GM has released a bulletin regarding this specific issue. Also few if any with an aftermarket CAI have reported this concern.

corvettej

My 2016 Z06 A8 just threw the DTC code P228C under hard acceleration, reduced speed, limited to 25 mph and traction control off, car has never been tracked, have only 2700 miles with a full tank of fuel. Recycle the engine a couple of times and the check engine light is gone. Drove it to the Chevy dealer got an appointment, he said to drive it till my appointment.

VictorBarron

I guess it hasn't caused just too many cars to be affected. You would think if it was a huge issue they would do a recall.

383vett

Same thing happened to me at the 1000' mark last month. Weather permitting, I'll find out Sunday if it was a one time occurrence.

SharkbyteLT4

I had it a month ago during a run of hard acceleration. The car felt like it was falling on its face the higher it rev.

My car never went into limp mode, but he check engine light did stay on. The next day it went away , but I went in the history and clear the code out with HPtuners. I thought it was because i was running maybe too much E85 on my flex fuel setup.

Please post up the bulletin number so I can have it in case this happens again. Thanks!!!

SharkbyteLT4

update regarding your appt results?

corvettej

My appointment is in the second week of December because their corvette mechanic is tied up now with a couple of vettes and they didn't want my vette to just sit in the shop, said it was safe to drive until my appt.

JBond214

Had this P0228c code on my 15 Z06 on my very first track day c 18 months ago. Car went into limp mode with reduced power. I cleared the code in the garage, went for a drive on the street, then returned and finished out the rest of the track day no problems. Had the dealer check the car a few days later, they found nothing (may have been before the notice mentioned above). Been over a year since then with 10+ track days with no recurrence.

corvettej

Well, took the car in for the appointment 12/05/16 @ 0800 for DTC PO228c, the car had reset, no CEL but the dealership hook their tool to it and said the code was still pending, said I couldn't get the car back for a few days, they had to get with GM. Something about disassembling the supercharger and something else, so they gave a 17' Impala to drive during the time it in for repair, the date on the loaner car is from 12/05/16 to 12/20/16, I ask was it going to take that long, probably not just to be safe said the service advisor. This morning OnStar sent me a message stating there are issues with the engine and transmission, needs to go in for service within 7 days if it is already in the shop disregard. Hopefully everything get repair right, I'm not going to rush them or call everyday I'll just wait.

corvettej

Dealership just called and said she is ready, had to replace the fuel rail sensor per PIP5279A, updated the software and got android auto working. This is quicker than i thought. He said they also check the transmission for codes, there wasn't any. Fingers crossed.

383vett

I posted a few threads up that my car threw this code at the 1000' mark a couple of months ago. Dealer said if it happened again, most likely the fuel pressure regulator and/or the fuel pump needed to be replaced. Just made 4 runs last weekend and the car was fine. When my car initially threw the code, I had only a quarter tank of fuel. These runs were made with 3/8 of a tank. I'm not sure if there is any correlation, but hope I don't see it again.

Bill Dearborn

I don't think the fuel level would have caused your issue. The passenger side tank is emptied first then the driver's side tank is emptied. 1/4 tank of fuel would mean you had a half full driver's side tank and 3/8 would indicate the driver's side tank would be about 3/4 full.

Bill