Check engine light after hard acceleration - Maserati Ghibli Forum
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post #1 of 21 (permalink) Old 08-19-2015, 06:36 PM Thread Starter
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Check engine light after hard acceleration

Hello everyone. I have a 2015 Ghibli SQ4, and while I was driving it earlier today the check engine light came on. After a pretty hard acceleration that got the revs near red line, the light immediately came on. The car also made a strange thump and pop type noise. Turning the car on and off made no difference. The dealer said as long as its not flashing, the car is fine to drive. Has anybody had this problem with their Ghibli? What was the cause of it?
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post #2 of 21 (permalink) Old 08-19-2015, 06:40 PM
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Happened to me as well.. I gunned it from 1-4 gear then all of a sudden my engine light turned on and flashed for about 10 seconds.. turned off and never came back on since then.. that was about 5 days ago...

2015 Ghibli SQ4 (Nero/Nero)
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post #3 of 21 (permalink) Old 08-19-2015, 07:45 PM
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Nope ... have 2104 SQ4. No check engine light riding up and maintaining the red line.
Out of curiosity what type of gas are you using?

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post #4 of 21 (permalink) Old 08-19-2015, 08:06 PM
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Shell 91

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post #5 of 21 (permalink) Old 08-20-2015, 08:07 PM
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Shell 91 octane should be fine for the car.

I'm using 93 octane exclusively and never saw what you describe.

Reason I asked is early on in this forum we had a few intermittent check engine lights comments based on gas used. Most were attributed to lower quality fuel while traveling or trying to run 89 octane instead.

I'm sure others on the forum have "gunned" their car without what you've described so must not be a common occurenece. I could see the ECU set to limit rev's or cut back on fuel supply ... but not the thump and pop, (backfire?).

If it occurs again, you should have you dealer check it out ... its not normal.

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post #6 of 21 (permalink) Old 08-23-2015, 09:38 PM
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This happened to me a month or two after I got the car. Got on it hard all the way to red line and the check engine light blinked and then I can't remember if it stayed on until I shut the car off or if it went off after it blinked.

Hasn't happened since, although I will say it scared me a bit. Not sure if I've taken it that high since. I've had the car 9 months now and, knock on wood, haven't had any major issues.
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post #7 of 21 (permalink) Old 08-24-2015, 12:11 AM
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Hi
I had similar issue
I have been once in a while accelerating it and hitting 100+ in 5-6 sec and then reducing speed. I also use Shell gasoline.
However, recently the check engine light turned on while driving SLOW
I have a 2015 SQ4 with 2400 miles on it
I also go from sports to save mode not sure if this may make a difference
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post #8 of 21 (permalink) Old 08-24-2015, 08:18 AM
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running the car hard should not present a CEL, i do it daily and have no issues. even taking the car near redline should not be a problem since the car has a REV limiter which prevents the RPM's from going too high by cutting the fuel.

a simple answer to why your CEL is an OBD reader. for a few pennies, you can read and clear the CEL, and save yourself a wasted trip to the dealer. i have this one and it does everything i need it to do, which is read and clear the CEL.

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post #9 of 21 (permalink) Old 08-24-2015, 02:36 PM
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I have a cheap reader I got for my truck. I am assuming it depends on the car if it stores CEL codes that were triggered and then turn off.


Do you if the Ghibli stores the code? My car went in for the campaign updates, so the dealer may have cleared it even then, but they never said anything.


This is the reader I have:
Amazon.com: OBD2 Reader Car Diagnostic Tool OBD II Code Reader Check Engine Light: Automotive Amazon.com: OBD2 Reader Car Diagnostic Tool OBD II Code Reader Check Engine Light: Automotive




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post #10 of 21 (permalink) Old 08-24-2015, 03:11 PM
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if the CEL is not presently on, the OBD reader will not detect the fault, at least not a generic OBD reader. if the CEL comes on, shutting the engine off and restarting is suppose to store the fault code in the car however most times it does not store anything, so its best to hook the OBD reader up as soon as the CEL pops on. if the CEL goes away by on its own, the fault likely corrected itself, at least temporarily.
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