[Bogarmora]

I tried two pulls on same log so it might look weird but I tried uploading two different ones and couldn’t find the file but I tried starting at 2500k to redline I won’t run the car on this daily just wanted to see if it ran good just in case maybe a once in while deal but I’m usually on map 2

[JCB]

Map 5 is a no-go. Timing values drop to zero indicating pre-ignition/knock. The Map 4 pull looks ok...timing values low but not terrible. I would be careful though because it is borderline and rising ambient temperatures later in the summer may affect combustion. Try a map 3 pull and post back. You will be trading the additional boost for some additional timing advance, so the car may feel nearly as fast and certainly smoother and safer.

[Bogarmora]

Sounds good brother I’ll do it later at night because when I did this pull it was 80 and right now it’s 85 so I’ll let the temp go down and I’ll submit a map6 I was suggested and map 3 pull later , thank you in advance

[Bogarmora]

How’s This look ?

[JCB]

Is this the same tank of gas? Your car was not happy on either Map 3 or the Map 6. This looked worse than the Map 5 pull. Anyway, take it easy until you can get some better fuel! What part of the country are you in and what brand of fuel?

[Bogarmora]

I’m in ca 91 shell and I’ve had a problems with my JB4 not connecting or giving certain data lately , sometimes rpm afr or temp gauges would show zero . You think it’s the wire because it’s the wire that connects from the obd2 to the JB4 that’s giving me issues and you think I should remove the JB4 ?

[Bogarmora]

I’ve noticed every time I accelerate full throttle it goes to zero I’ve posted my concern but nobody replied here the JB4 didn’t even want to change maps either

[JCB]

Originally Posted by Bogarmora

I’m in ca 91 shell and I’ve had a problems with my JB4 not connecting or giving certain data lately , sometimes rpm afr or temp gauges would show zero . You think it’s the wire because it’s the wire that connects from the obd2 to the JB4 that’s giving me issues and you think I should remove the JB4 ?

Don't think you need to remove it. Just retreat to map 0 or map 1 until you can figure out how to get better fuel. Do you have access to any E-85 where you are? You could try mixing in a few gallons of that with your 91.

[JCB]

Originally Posted by Bogarmora

I’ve noticed every time I accelerate full throttle it goes to zero I’ve posted my concern but nobody replied here the JB4 didn’t even want to change maps either

If you are flooring it in Auto mode, the car is likely downshifting. It is normal for timing to reset to zero at each shift and then resume timing advance after that.

[Bogarmora]

I was in third in manual mode when it drops to zero and will the e85 affect my car in anyway I heard it eats up the lines ? I just have drop in filters and a axle back from Infiniti and no resonators -thanks in advance

[JCB]

Running E85 100% might eat up your lines. Very common to mix a few gallons into a fulol tank to increase octane rating.

[Bogarmora]

Given the circumstances with my JB4 and gas quality in cali I’m just going to sell it because it was fine a while back and I do hear a ticks only on full throttle on certain maps but when I remove the JB4 it’s gone and it runs smoother . Thanks for your help !!

[JCB]

Bummer - Sorry it didn't work out for you. Coincidentally...here might be a buyer for you. Just don't tell why your selling it because he will likely run into the same problems!

How to buy jb4 if living in Ca. | Infiniti Q50 Forum

[Bogarmora]

It’s working fine now it only did it once and it was after I washed it so it could’ve been water in the plug , might not have anything wrong but it’s just my situation with fuel that is making me want to sell it.

[JCB]

I was just talking about the fuel because the guy looking to buy is from Cali also so probably going to be dealing with the same fuel supply you are.

[Bogarmora]

Send me his info if you have it please and thank you

[JCB]

You would need to follow the forum link and contact the seller through a post or PM. It's a very good forum so you would benefit from joining with or without a JB4.