While I was out of town during on of our Reactor refueling outages, My wife took my 2013 GLS in for the TPMS light coming on and they just added air , but while she was there then did an ECM update DTC P0087 (15-01-010).
Can any Hyundai Tech give me more info on the flash to the ECM?
Well, the P0087 error code means "low fuel rail pressure", which usually means the high pressure fuel pump is failing. I'm not sure what an update would do.
If I had to guess, it might update drive ability issues. Ac compressor load offset, startup pressure changes. could be that the system was seeing a low pressure during those times, setting the code and then turning off the pump control as a default.
Yea it is just a basic software update. They did mine at my last oil change a few weeks back. My fuel economy seems to be a tad better after this update although it's probably more related to the warmer weather we've been having but when knows.
Thanks for all the responses so far, I am hoping a Service tech( Like SBR711) can provide the Technical Service Bulletin
like he did from this repsonse he sent to thread
The 0087 update is a recall... recall is of no charge to customer, regardless of owner status or mileage...
I suspect it is just expanding parameters before dtc is set (wider range of good operation).. along with maybe some other jibberish they put in,, we at dealer level not priviledge enough to be told what in the program, other than 0087 DTC logic
Just had my 27K oil change on the 2012 Turbo. Along with the oil change they did an ecu update but my mine reads: 50CA03R0. Will this be the same as the mentioned above??
Read your invoice.. should be job line for recall and a job line for the oil change.... what does it say ?? Open recall 935 / per Hyundai Motor Company / install PCM update ?
50CA03R0 is the "OP CODE" that dealer' warranty clerk use when filing claim for payment from HYundai Motor Company
All I did was ask if there were any for the 2013 sonata and they never heard of one. Didn't ask for my vin. Think I'll call during the day tomorrow. Found this on some random carfax dealer report:
Hyundai Motor America Manufacturer recall/service bulletin issued
Recall # 935
2012-13 SONATA & 2013 SANTA FE SPORT ECM SOFTWARE
UPDATE
Click here or call 1-800-633-5151 to locate an authorized Hyundai dealer near you to obtain more information about this recall.
I just came back from the dealer for the recall. I have a 2013 santa fe stort 2.0 turbo. 3 software updates. Dealer could not tell me specifically what they do but they were done.
E-clip replacement
ECU Update
MDPS SW update
Cluster software update.
Haven't noticed anything with the update other than the gas mileage readout. I use a top tier gas and after a fill up I would get 426 miles till empty and it would be just about dead on, now it reads 404.
Had this done to mine today. Service guy didn't even know anything about it until I told him. Paperwork just says something about "perform ecu update campaign" yadda yadda. Nobody knew what it did, and I can't tell any difference.
Recall ECU update done during oil change this week. Service writer mentioned it when I made the appointment. Reset average MPG tracker afterwards. Looks like I'm getting about 10% better MPG now. Haven't gone through a tank yet, so no firm data.
I use premium top-tier gas. Currently do best with Exxon.
Well, I had the 935 update and immediately lost 2-3 mpg, engine lugging on slightest grade and cruise control running away on slight grade, and engine now starts harder than ever before. Wish I had never done it. Have sent message to Hyundai to please delete new program and flash old rom back in. Great car overall but lousy service outlets as verified by all the complaints about service on the interent. for the record, I was getting 35.4-35.7mpg highway with cruise set at 70mph. and dropped to 32.2 exact same road and conditions and point a to point b mileage so I know for a fact that whatever 935 was suppose to do was a big failure.[On my 2013 Sonata] Should have left well enough alone I guess. Can't wait for Hyundai's response...
Well, I had the 935 update and immediately lost 2-3 mpg, engine lugging on slightest grade and cruise control running away on slight grade, and engine now starts harder than ever before. Wish I had never done it. Have sent message to Hyundai to please delete new program and flash old rom back in. Great car overall but lousy service outlets as verified by all the complaints about service on the interent. for the record, I was getting 35.4-35.7mpg highway with cruise set at 70mph. and dropped to 32.2 exact same road and conditions and point a to point b mileage so I know for a fact that whatever 935 was suppose to do was a big failure.[On my 2013 Sonata] Should have left well enough alone I guess. Can't wait for Hyundai's response...
just curious, what plant you at? i work at one of the candu plants in ontario, so we don't get the refueling outages. fueling is done on power....when the machines aren't broken lol.
After my ECM update on Friday @ noon, I noticed on Saturday that upon activation of my key to start, I do not hear the whirring sound of Fuel pump @ all,this whirring sound was there for the last almost 7 months,this is when I purchased this rental. No I did not complained about this fuel pump noise @ start up,it is 100% resolved with ECM update.
So, insist on this ECM update, there may be more benefit, once I drive more,i will post about any other benefit. I only drove 30 miles since this update.
The Hyundai TSB is pretty short on details on what this update is about, other than to "update the diagnostic logic for DTC P0087 (Fuel Rail/System Pressure - Too Low)". However, the Kia Optima with the same engine has a similar campaign about this that has some more details:
Kia Motors America, Inc. is conducting a Voluntary Service Campaign to update the Engine Control Unit (ECU) in certain 2012-2013 MY Optima vehicles which could otherwise experience a decrease in acceleration accompanied by the illumination of the "Check Engine" or Malfunction Indicator Lamp (MIL).
The subject vehicles' engines are equipped with a Gasoline Direct Injection (GDI) system that utilizes a Flow Control Valve (FCV) to control the supply of fuel. In some 2012-2013 MY Optima vehicles, the FCV needle may experience excessive wear, eventually resulting in impairment of fuel flow. If that happens, and to protect the engine, the Engine Control Unit may reduce engine acceleration while illuminating the "Check Engine" or Malfunction Indicator Lamp (MIL). Kia therefore has decided to reprogram the ECU to improve the durability and operation of the FCV needle.
So it sounds like this isn't just a trouble code diagnostic logic change but a change to actually prevent excessive wear to the flow control valve inside the high-pressure fuel pump. Would be a good thing to get done then.
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