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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 07-28-2014, 07:24 PM   #1
pmachan
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Bad ping with Shark

01 330i, 5spd, stock engine.

Let me say first, the car pinged quite a bit stock, before Shark, I was hoping the shark would be a bit richer and eliminate it, not the case.
Its much worse with the shark. Everything works fine, power is fine, response is fine, no codes, fuel economy is normal, it just pings like crazy at part throttle.
I have read that replacing knock sensors can help, but that the ping can return. Be nice to figure out why its pinging and why the factory knock sening system does not catch it?

Thanks
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Old 07-28-2014, 08:33 PM   #2
Rob43
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Fuel is usually the first problem/cause in this situation. Do you run the highest octane (Premium) you can buy ? Also, have you tried switching gas stations, sometimes your local gas station sells bad/crappy fuel.



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Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 07-28-2014, 09:06 PM   #3
pmachan
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Crap, sorry, forgot that detail. Always 91, different stations, never matters.
Also have tried 3 different octane boosters, Lucas, NOS, and STP, none had much affect, the NOS one seemed a *bit* better, but it still pinged.

Going to try Torco next, I use that in my racecar, but its not any sort of long term solution due to availability and price.

....This thing is not a 79 Buick with a smog V8 and a bad tune up, its a modern fuel injected car with TWO knock sensors, you would think, well, that it should not knock..
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Old 07-28-2014, 09:30 PM   #4
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I feel your pain, your situation sucks.

I have been using the Shark Injector for years, mine works perfectly. Actually I can't remember anyone making a thread like yours discussing "pinging", so it's Very uncommon.


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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
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"Chance Favors The Prepared Mind"

Need Help With Your Nitrous Ambitions ?.....PM ME
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 07-29-2014, 03:34 PM   #5
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Try taking the car in to undated the dme? i know there have been a few versions out and mine updated a few versions when i went in. i have a 02 330i. might be worth a shot.
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Old 07-29-2014, 05:42 PM   #6
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Quote:
Originally Posted by pmachan View Post
Let me say first, the car pinged quite a bit stock, before Shark, I was hoping the shark would be a bit richer and eliminate it, not the case.
Its much worse with the shark.
What makes you think that Shark tune makes the engine run richer? Have you look at Shark tune maps, are you a tuner?

Fact is all BMW factory tunes run a bit rich at full throttle, what all commercial tuners do is make them leaner for more power. All these tunes were done when cars first came out and test cars were very low mileage, practically new. Now 13 years later on high mileage engine with dirty injectors and carbon deposit on top of the pistons, these commercial tunes are no longer recommended. Commercial tune will run your engine with more advanced timing and leaner fuel mixture, no wonder why it is pinging.

Quote:
Actually I can't remember anyone making a thread like yours discussing "pinging", so it's Very uncommon.
What is common for people to say is that shark injector brings no power at all. You know why? Because it pings and system retards the timing so you actually don't feel any increase.
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Old 07-29-2014, 06:30 PM   #7
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Quote:
Originally Posted by HakenTT View Post
.......

What is common for people to say is that shark injector brings no power at all. You know why? Because it pings and system retards the timing so you actually don't feel any increase.


Please post Dyno proof that the Shark Injector makes no whp.



Good luck,
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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

Need Help With Your Nitrous Ambitions ?.....PM ME
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 07-31-2014, 12:17 PM   #8
pmachan
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Quote:
Originally Posted by HakenTT View Post
What makes you think that Shark tune makes the engine run richer? Have you look at Shark tune maps, are you a tuner?

Fact is all BMW factory tunes run a bit rich at full throttle, what all commercial tuners do is make them leaner for more power. All these tunes were done when cars first came out and test cars were very low mileage, practically new. Now 13 years later on high mileage engine with dirty injectors and carbon deposit on top of the pistons, these commercial tunes are no longer recommended. Commercial tune will run your engine with more advanced timing and leaner fuel mixture, no wonder why it is pinging.



What is common for people to say is that shark injector brings no power at all. You know why? Because it pings and system retards the timing so you actually don't feel any increase.
I said I had *hoped* the shark may make part throttle a bit richer. The car pinged stock, as I wrote, now its just a bit worse.
I did a seafoam treatment, car has 80k.
I did not buy the shark for the tiny bit of power it provides, but for the added throttle response, as the stock 330 is a slug. It does exactly as advertised.
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Old 08-15-2014, 08:03 PM   #9
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So, mixed a tank of fuel up to 105 oct, no change in ping at all.
Not sure how that is even possible.

I also logged some data form the obd2 port with an ELM, it all looks fine to me.
Timing does nothing odd.
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Old 08-15-2014, 11:47 PM   #10
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Quote:
Originally Posted by pmachan View Post
So, mixed a tank of fuel up to 105 oct, no change in ping at all.
Not sure how that is even possible.

I also logged some data form the obd2 port with an ELM, it all looks fine to me.
Timing does nothing odd.

OK, you now realize you have a different problem. If no codes are present, here's how I'd proceed:

1) Pull the Shark back out of your Bimmer & drive it for a week to see if you get a different/better result.

If you don't:

2) I'd take your Bimmer to your local BMW dealer & have them Re-flash your ECU. This will take about one (1) hour of labor and will give you BMW's latest software for your Bimmer. Now drive it for a week to see if this fixed it, if it does, re-load your Shark Injector.



Good luck,
Rob43
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Rob #43 ITS/ITR/STU, BMW 325I, STU LAP RECORD
SUMMIT POINT WV 1:24:229 S.C.C.A.
(DynoDynamics https:vimeo.com/8486878 Dyno Video)
"Chance Favors The Prepared Mind"

Need Help With Your Nitrous Ambitions ?.....PM ME
Quote:
Originally Posted by RacerX View Post
Nitrous is a little trickier than boost, but it's not the spray that kills motors, it's STUPIDITY!!
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Old 08-16-2014, 02:34 AM   #11
e46techtuner
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If I remember correctly, Shark Injector recommends an aftermarket air intake and 91-95 octane.
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Old 08-16-2014, 05:21 AM   #12
-lynel-
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e46tchtuner OP stated a mix of 105octane did not resolve the issue. neither the shark injector or fuel quality will be the issue. sounds like something physical like dirty or blocked injectors, bad fuel pressure or even hotspots on the pistons though less likely
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