Olorin2

iTrader: (6)

I think the main difference(s) between this and the current "cranks no start" TSB is that the newer one doesn't include the battery and starter inspection/replacement procedures. However, both involve troubleshooting for starting problems for when you shut down the engine cold - not necessarily for hot-starting issues (at least, I didn't see that symptom listed).

Texak

i have a optima yellow top that has about 5 months of use. never had a problem with it. the updated starter has soooo much more kick to get the rotors moving. this was my 3rd starter in about 2 weeks and it is a huge difference. i didn't go to the dealership and have it done under warranty because i didn't want to tear all the crap out of my car. well worth the investment for the peace of mind in knowing that you're much less likely to get stranded with flooding issues.

i would also mention that 'hot starts' were never an issue before i put on the yukon coils, but with the updated starter there is no problem at all. ray, you might want to add this to your list of suggestions... have the updated starter installed before you upgrade the ignition. for whatever reason, it causes a load of problems without it.

fannin522

so with new coils in you think dealership would say thats y i need a new starter and not pay for it?

swoope

iTrader: (5)

wow,

just an observation.. my guess is you pulled the battery to install the coils. if not you should put it and step on the brake.. to reset lots of stuff.

but it would be a good idea to to do the brake tap dance to reset the eshaft sensor..

beers

alienRX8

ok so I was out datalogging tonight to send them to Jeff and this happened...

Idle...Fine
4200rpm cruise...Fine althought a bit richer than I like it ~13.3 AFR
2nd WOT...Fine until I reached 7k rpms and my car bucked (I think thats a misfire)

What could be the problem here?

05rex8

iTrader: (7)

because it was a misfire.
my bhr ignition did the same.
I know of a few others that this happened to as well.

I am now using stock coils.
Make your own conclusion though, you don't have to listen to me.

alienRX8

Yeah I might try the stock coils to see if it is actually that.

Flashwing

Any idea what your air/fuel ratio was when you experienced what you though was a misfire?

Kane

iTrader: (1)

Mine does it to; it could be the tune or a wire - or bad coil. Ray send me a wire for one of mine that is suspect. I'll swap it - double check the tune (it is rich but a 10:1 shouldn't be an issue for these) and get back to everyone.

Remember once you START to misfire it will make your AFR'S LEAN - so if your seeing say 11-12 AFR and misfiring you could still be drowning in fuel (like 8:1).

05rex8

iTrader: (7)

I didn't think it was possible...but I checked things over and over again....everything was good..new plugs too. Swapped in my oem coils and wires that have ~20K miles on them and misfires are gone. Better performance too...I was losing power in low RPM's and once I got around 6500 RPMs and above...all misfires. Started out at 7-8 PSI. Then got worse and was getting misfires at 5psi. With the stock coils I can run 10 psi no problem right to redline.

Hope you get it sorted out!

05rex8

iTrader: (7)

have you tried to swap back to OEM?
if you don't have misfires with those, couldn't you rule out it being a tuning issue?

Kane

iTrader: (1)

I did get them with the stockers....but they had 7000 boosted miles on em; so I figured they were toast. Misfires were worse with the extra 3071R love; so the BHR's went on; and I am better than stock overall; but still not 100%..... but then Ray mentioned the terminals being velly touchy; and one of mine is really soft (I did pull them all out; which is a no-no in the instructions now).

So I just need to test some more; but been too busy and I was waiting for my wire.

So I'll replace wire, verify plugs are good; verify tune is good and go from there.

Kane

iTrader: (1)

Oh I should also add - anyone know how to test a coil? I hate electronics but I should verify they are all good to go.

05rex8

iTrader: (7)

werd.

I'm pretty sure I did not pull mine out when I installed it. Who knows.

Look forward to the results!

Flashwing

If any of you are experiencing what you believe to be problems with your BHR ignition upgrade, please contact us so we can assist you with troubleshooting or otherwise work out options for you. We're here to assist you with anything you buy from us. Our service doesn't stop after the sale.

You can contact any of us on the BHR team at any point.

Kane

iTrader: (1)

I want to finish testing first - no sense chasing our tales if the real culprit is bad tunes from old coils.

Can you direct me to a link etc on how to verify the coil is not a dud?

fannin522

already tried that

alienRX8

Ok I am sure its not running pig rich since I was running mid 10's perfectly and once I hit 7k rpm it was like the car hit a wall suddenly and yes it went lean to about 12.6 I noticed (maybe a little more). The thing is I have triple checked everything, wires are on tight, plugs are new, and of course coils are new. I had a grounding problem at first but that I THINK is sorted out with the new position. I dont know really what else it could be. All my wires look fine so I dont know if one is having problems. And why would the problem only occur at 7k rpms?

alienRX8

Hey Charles if I take my ignition off and put in the stock one should I send mine back so you can check it too?

alienRX8

I really have just ran out of ideas on what to do with it. I have rechecked all the connections and idk why its still misfiring.

bse50

I charged my battery.
Cars starts fine.

alienRX8

I know man. You have always been there on the phone or via PM when I have needed you I am not complaining at all. Hopefully we can have this fixed soon.

Olorin2

iTrader: (6)

Charles,

Again, thanks for taking the time to look into these problems. I will update the thread after I take the car in for the new starter. I'd prefer doing it myself, but I'm not paying $300-400 for a new starter when the car is under warranty. I just hope the dealer will not look at the coils as being the source of the problem.

alienRX8

Well I just got back from going to lunch and the car is misfiring more, the day is HOT as HELL here in Puerto Rico. I am going to switch back to stock coils ASAP so I can test out and see if it is that and if it is I will send it your way charles so you can check and see what it may be.

NavyShinka

I installed my kit last weekend. Things were looking good. Until... I tried to start it when it was still hot. After reading the last 3 pages it seems that I am not alone and the consensus looks to be the starter/battery. I have a newer Optima yellow top (last year) so I don't think that is the issue. I too, was having hot start issues before the install and thought it was the old components since I was also getting mis-fire CELs as well. Now there are no CELs but the hot start issue remains. I guess that it is time to change out the starter.