[riskmaker76]

We are 10% ethanol in NY -

The only down side in our engines is when it causes the AFR to rise... I dont see this. In fact I know many who add 2 gallons of E to increase octane which works nicely for our cars - nice bump in timing.

I personally just think most stations are robbing us and saying 93 and pulling from the 91 tank or some other blend that doesnt meet 93 octane fully.

Octane booster helps a ton - clear to me its an octane issue. If others dont have the issue then why do I and others in NY?

SOme say they dont have an issues but these are the folk who have no clue how to read logs. and think because they see 17 psi boost that all is running great.

Originally Posted by Araemo

Is the fuel in NY high in ethanol? From talking to friends who know far more about tuning than me, making up octane with ethanol has downsides, because the energy density of the fuel decreases. So if your 93 is '91 mixed w/ 15% ethanol' it will technically meet the definition of 93 (it will have the same detonation resistance as 'pure gas' 93), but it will behave differently than 93 w/ 0% ethanol.

[Araemo]

Originally Posted by riskmaker76

We are 10% ethanol in NY -

The only down side in our engines is when it causes the AFR to rise... I dont see this. In fact I know many who add 2 gallons of E to increase octane which works nicely for our cars - nice bump in timing.

I personally just think most stations are robbing us and saying 93 and pulling from the 91 tank or some other blend that doesnt meet 93 octane fully.

Octane booster helps a ton - clear to me its an octane issue. If others dont have the issue then why do I and others in NY?

SOme say they dont have an issues but these are the folk who have no clue how to read logs. and think because they see 17 psi boost that all is running great.

Your state (per-county in ohio) should have an auditor that tests gas stations for #1: That they charge you for the right # of gallons, and #2: that the octane is correct.

[High Flier]

Originally Posted by Pr3dict

Ive had it for a year now and while it works fine in the winter the summer months bring check engine lights and stuttering when idling and accelorating.

I'm reaching out for a refund at this point because the car has been at the dealer so many times for this issue and its just ridiculous at this point.

Regardless of the fact that NY may have "bad" 93 it shouldn't be so bad to the point that the product doesn't work as designed.

When I read this I thought he was referring to the Dinan. Pr3dict, do you have a JB4 or Dinan Elite?

[Pr3dict]

Originally Posted by High Flier

When I read this I thought he was referring to the Dinan. Pr3dict, do you have a JB4 or Dinan Elite?

Dinan Elite lol.

I dont agree 100% that its "just" the gas. I think it has something to do with the climate also. Gotta be a bunch of variables over here that are making our systems behave differently. I've literally had a check engine on and off for a month now.

I have had the elite for almost a year now and I think the only months its worked without a check engine light have been from December to March.

[monkiboy]

Originally Posted by Pr3dict

Dinan Elite lol.

I dont agree 100% that its "just" the gas. I think it has something to do with the climate also. Gotta be a bunch of variables over here that are making our systems behave differently. I've literally had a check engine on and off for a month now.

I have had the elite for almost a year now and I think the only months its worked without a check engine light have been from December to March.

it is not just NY. it's the product. I used it for a few months and results sucked most of the time and drivetrain confused and inconsistent results.

[3ToAgree]

Originally Posted by Pr3dict

Dinan Elite lol.

I dont agree 100% that its "just" the gas. I think it has something to do with the climate also. Gotta be a bunch of variables over here that are making our systems behave differently. I've literally had a check engine on and off for a month now.

I have had the elite for almost a year now and I think the only months its worked without a check engine light have been from December to March.

Ive had mine for around 4 months and got the first CEL followed by another 1 month later... The dealer is changing the unit. We'll see if that works. As far as how it drives, i love it. no negatives in the tune itself from my standpoint.

[madmortar]

Seems like a number of people with the B58 DINAN stage 1 are throwing CELs. A few youtube videos on the subject.

Dinan's thread yet I believe they have not chimed in since 07-26-2017.......

[3ToAgree]

Originally Posted by madmortar

Seems like a number of people with the B58 DINAN stage 1 are throwing CELs. A few youtube videos on the subject.

Dinan's thread yet I believe they have not chimed in since 07-26-2017.......

The dealer changed the harness on mine but I have a feeling that is just a guess in the dark... I will see how long it goes before it throws another CEL. Pretty soon they will release Stage 2 so I will flash to that when it comes out.

[daveyfx]

Originally Posted by madmortar

Seems like a number of people with the B58 DINAN stage 1 are throwing CELs. A few youtube videos on the subject.

Dinan's thread yet I believe they have not chimed in since 07-26-2017.......

I finally threw a few codes on mine yesterday. Strangely, the car drove just fine for a few thousand miles and dyno'd ~ 30 WHP peak gain over stock with no issues to speak of.

Codes picked up by my scanner:
http://f30.bimmerpost.com/forums/sho....php?t=1496800

[madmortar]

I know im just a 328i guy but...

Why isnt DINAN jumping all over this? If bad press about this tune is reaching someone that doesnt even have the engine (i see it in more places than just this forum), i would think they would be speaking up.

This is coming from someone about to put on a DINAN exhaust and sport tune on my car...

[ishowerinjager]

Originally Posted by madmortar

I know im just a 328i guy but...

Why isnt DINAN jumping all over this? If bad press about this tune is reaching someone that doesnt even have the engine (i see it in more places than just this forum), i would think they would be speaking up.

This is coming from someone about to put on a DINAN exhaust and sport tune on my car...

Couldn't agree more. There are tons of terrible reviews for the dinan tunes for the b58.

They don't seem to respond in any way publicly. It's a shame because I have been wanting to buy it for a year now but have held off until I start seeing some positive results.

[madmortar]

Originally Posted by ishowerinjager

Couldn't agree more. There are tons of terrible reviews for the dinan tunes for the b58.

They don't seem to respond in any way publicly. It's a shame because I have been wanting to buy it for a year now but have held off until I start seeing some positive results.

And this is the tune that is suppose to be OEM+ / headache free...etc..etc..

[3ToAgree]

Originally Posted by ishowerinjager

Couldn't agree more. There are tons of terrible reviews for the dinan tunes for the b58.

They don't seem to respond in any way publicly. It's a shame because I have been wanting to buy it for a year now but have held off until I start seeing some positive results.

To be fair, I love my Dinan tune on my B58. It adds a great deal to the performance of the car and is also very smooth and driveable. I just had the 2 CEL's and its clear the dealers are not really sure how to address other than clear the codes and change the harness/cables. I'm not sure if JB4 throws an odd CEL either but maybe it hasnt.

I know Dinan is very close to releasing their Stage 2 tune to pair with their upcoming Cold Air Intake. Maybe that tune will take care of the CEL's. Not sure.

[madmortar]

The "not sure" is what is troubling.

DINAN needs to hire someone to handle PR and questions on the forums.

Has anyone with this issue called and talked to DINAN about it?

[ishowerinjager]

The fact that pretty much everyone on here has some issue, no matter how small, just makes me not want to buy it.

I realize in the online world, negative experience people show up and post more than those who who have had a great experience. I just can't seem to find anyone who loves the product.

Honestly, I'm a little concerned that they are releasing stage 2 without even having stage 1 working consistently.

[3ToAgree]

Originally Posted by ishowerinjager

The fact that pretty much everyone on here has some issue, no matter how small, just makes me not want to buy it.

I realize in the online world, negative experience people show up and post more than those who who have had a great experience. I just can't seem to find anyone who loves the product.

Honestly, I'm a little concerned that they are releasing stage 2 without even having stage 1 working consistently.

You just found one but Love is a strong word and agree folks are far more likely to post negative than positive. What I don't know is when you're entering the "tuning" world, is it really realistic that you have exactly 100% the same experience of OEM off the lot? I think probably not... I agree though that I haven't read as much about JB4 CEL's but i have read about JB4 being not as a smooth of drive as the Dinan. I just try to have a balanced view on it. I will say this, having the BMW dealer install the Dinan is worth it imho. I got the same experience as a warranty issue, eg loaner, etc which speaks to the Dinan warranty. I know folks having to remove JB4 tunes every time they go to the dealer for any service work. Just a few more thoughts...

[3ToAgree]

Originally Posted by madmortar

The "not sure" is what is troubling.

DINAN needs to hire someone to handle PR and questions on the forums.

Has anyone with this issue called and talked to DINAN about it?

"not sure" comment was related to other piggyback tunes... The BMW dealer who installed mine, actually communicated with Dinan and sent the engine logs. They said no issue whatsoever on engine itself but recommended changing the wiring harness. I will see how long it goes now that I have it back from the dealer.

[ishowerinjager]

Originally Posted by 3ToAgree

"not sure" comment was related to other piggyback tunes... The BMW dealer who installed mine, actually communicated with Dinan and sent the engine logs. They said no issue whatsoever on engine itself but recommended changing the wiring harness. I will see how long it goes now that I have it back from the dealer.

Your lucky you have a dealer that still works with dinan in your area.

Both dealers in my city stopped installing and working with dinan 3-5 year ago. They complained about poor service and dinan not honoring their warranty.

And the one dealer is quite mod friendly and is the highest selling M dealer in all of Canada.

[3ToAgree]

Originally Posted by ishowerinjager

Your lucky you have a dealer that still works with dinan in your area.

Both dealers in my city stopped installing and working with dinan 3-5 year ago. They complained about poor service and dinan not honoring their warranty.

And the one dealer is quite mod friendly and is the highest selling M dealer in all of Canada.

To me, the only reason I would pay more than double the JB4 tune for the Dinan is to get dealer support and warranty. If you don't have that, then worth the risk just to get the JB4 tune, imo.

[TYE]

Originally Posted by 3ToAgree

You just found one but Love is a strong word and agree folks are far more likely to post negative than positive. What I don't know is when you're entering the "tuning" world, is it really realistic that you have exactly 100% the same experience of OEM off the lot? I think probably not... I agree though that I haven't read as much about JB4 CEL's but i have read about JB4 being not as a smooth of drive as the Dinan. I just try to have a balanced view on it. I will say this, having the BMW dealer install the Dinan is worth it imho. I got the same experience as a warranty issue, eg loaner, etc which speaks to the Dinan warranty. I know folks having to remove JB4 tunes every time they go to the dealer for any service work. Just a few more thoughts...

I would say yes even in the tuning world you should expect it to be like oem off the lot. There are plenty of highly tuned other marquee vehicles running flash tunes with 0 issues, 0 cells, and actually better drive-ability than oem.

Sure tuning is an at your own risk decision, but maybe folks releasing these products should spend way more time in beta and really ironing out the kinks vs just releasing. I have had plenty of modified vehicles and tunes and never had issues.

[3ToAgree]

Originally Posted by TYE

I would say yes even in the tuning world you should expect it to be like oem off the lot. There are plenty of highly tuned other marquee vehicles running flash tunes with 0 issues, 0 cells, and actually better drive-ability than oem.

Sure tuning is an at your own risk decision, but maybe folks releasing these products should spend way more time in beta and really ironing out the kinks vs just releasing. I have had plenty of modified vehicles and tunes and never had issues.

Appreciate that view but my sense is that is a very high ambition. Look at all the CELs that occur with folks adding downpipes? when you read those posts, there are no assertions on the company that their downpipes are poor because a CEL is being thrown. It reads like normal modding that requires consideration of sensors being tripped. Just offering an observation. I'm not happy either that I had the inconvenience of bringing my car to the dealer becuase of a CEL. I could've just cleared the CEL at my home and written it off but wanted to have the dealer check it. Hopefully, it wont happen to often as the car is an absolute beast with the Dinan tune and I really dont want to lose the warranty option nor do i want to remove the harness every time i bring in for service work (eg with the JB4).

[TYE]

Originally Posted by 3ToAgree

Appreciate that view but my sense is that is a very high ambition. Look at all the CELs that occur with folks adding downpipes? when you read those posts, there are no assertions on the company that their downpipes are poor because a CEL is being thrown. It reads like normal modding that requires consideration of sensors being tripped. Just offering an observation. I'm not happy either that I had the inconvenience of bringing my car to the dealer becuase of a CEL. I could've just cleared the CEL at my home and written it off but wanted to have the dealer check it. Hopefully, it wont happen to often as the car is an absolute beast with the Dinan tune and I really dont want to lose the warranty option nor do i want to remove the harness every time i bring in for service work (eg with the JB4).

I understand your perspective but I'm referencing more about the software flash/tune compensating for modifications. Why is it on my GT3 I can run no cats, or high flow cats, or any configuration of headers/exhaust and not throw cells? I'm in CA as well and pass smog when plugged in.

On my previous e36 m3 with obd1 conversion which I did back in 2003 again I had no issues with cells whether I was straight piped or not. Turbo kit on it, again no issues.

Obviously these cars have got more complex today but there should be no reason a car can't run smooth just because weather changed outside. Sure it takes work to get it right, but just living with it should not be an option.