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  1. 05-08-2018 08:29 AM #1
    All-Pro
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    EPC light is on and Check engine light flashing after APR Stage 1

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    Got the APR Stage 1 done three weeks ago, immediately noticed the difference. Check engine light came on two days later while I was out of town but went off a couple days later.

    Sunday evening, I did about 4.5 hours on the highway while driving home and the car was smooth as ever. Yesterday morning, the check engine light is flashing, epc light is on, and the engine is loud and shaky in the 1500-3000 rpm range.

    This morning, dropped it off at the performance shop that did the ecm flash. Any thoughts on what’s going on?


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  2. 05-22-2018 10:05 AM #2
    RockJGC
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    What code came up?
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  3. 06-15-2018 08:13 AM #3
    if6ws9
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    Feb 08 2012
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    Grand Cherokee
    Location
    Palm Harbor, Fl

    Did you ever find out what the problem was?
    2014 A5, Gloss Boat Blue, Black Optics, Sport package, MMI+, B&O, AWE Touring, AWE DP, USP HFC, CTS CAI, APR Stage 2, ST Coilovers, Alu Kruez, 034 TX insert, ECS diff bushing, Apikol blue diff mount, VAG's, Escort Redline, ZR4 shifters, 20% tint, Sprint Booster, ECS dipstick, FB steering wheel, piston diverter valve, ECS rear lower control arm brace, 10mm & 12mm spacers, BFI shift knob, CR 15, powder coated calipers, extended paddles, Vossen CV3-R's, Eurocode F&R sways, RS grille
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  4. 07-30-2018 09:06 PM #4
    All-Pro
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    @if6ws9 they said one of the ignition coils went bad. Found that to be pretty strange considering Audi replaced the engine about 5 months earlier


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  5. 07-02-2019 10:33 AM #5
    tec15
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    no problem since?


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  6. 08-24-2020 04:19 AM #6
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    Quote Originally Posted by tec15 View Post
    no problem since?


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    Just saw your reply....they never found the true issue. A few weeks ago, according to the dealership, the timing chain jumped and bent a few valves.


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  7. 08-24-2020 02:10 PM #7
    if6ws9
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    My Garage
    Grand Cherokee
    Location
    Palm Harbor, Fl

    After replacing the fuel pump (and getting a carbon cleaning) 3-4 months ago, it hasn't happened since.
    2014 A5, Gloss Boat Blue, Black Optics, Sport package, MMI+, B&O, AWE Touring, AWE DP, USP HFC, CTS CAI, APR Stage 2, ST Coilovers, Alu Kruez, 034 TX insert, ECS diff bushing, Apikol blue diff mount, VAG's, Escort Redline, ZR4 shifters, 20% tint, Sprint Booster, ECS dipstick, FB steering wheel, piston diverter valve, ECS rear lower control arm brace, 10mm & 12mm spacers, BFI shift knob, CR 15, powder coated calipers, extended paddles, Vossen CV3-R's, Eurocode F&R sways, RS grille
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