JB4 Hesitation

[EBM4]

Originally Posted by dmk08

Post up a csv log. Need to look at your trims etc.

I always so my log runs in 3rd from 3000 to redline but I have manual so maybe 4th for you?

Here is the graph of the Log how do I add the actual file in CSV on the mobile app? The graph also shows it, the car won't shift from 3rd to 4th and bounces up and down between 6000-6300 RPM.

[CaryTheLabelGuy]

Originally Posted by EBM4

Here is the graph of the Log how do I add the actual file in CSV on the mobile app? The graph also shows it, the car won't shift from 3rd to 4th and bounces up and down between 6000-6300 RPM.

Your trims are through the roof and it's causing the DME to lower AFR targets (this is a safety feature) and your AFRs are dipping down into the low 10:1 range with is causing misfiring.

What is your Fuel Open Loop set at? You really need a back-end flash or you'll need port injection (and E85) or meth injection (and E85). You need to run Map 1 or map 4 (stock boost) for now until you can get this sorted out.

[EBM4]

Originally Posted by CaryTheLabelGuy

Your trims are through the roof and it's causing the DME to lower AFR targets (this is a safety feature) and your AFRs are dipping down into the low 10:1 range with is causing misfiring.

What is your Fuel Open Loop set at? You really need a back-end flash or you'll need port injection (and E85) or meth injection (and E85). You need to run Map 1 or map 4 (stock boost) for now until you can get this sorted out.

When I log into the app it says zero but I am assuming I have to be in the car with the car running. I will check in the AM. But shouldn't Map 2 in general be fine for CA 91 octane.

[dmk08]

Originally Posted by EBM4

When I log into the app it says zero but I am assuming I have to be in the car with the car running. I will check in the AM. But shouldn't Map 2 in general be fine for CA 91 octane.

I thought map2 required 93 or 91+e85? Are you running downpipes?

[CaryTheLabelGuy]

Originally Posted by EBM4

When I log into the app it says zero but I am assuming I have to be in the car with the car running. I will check in the AM. But shouldn't Map 2 in general be fine for CA 91 octane.

You're running aftermarket turbos, correct? And no, even on the stock turbos map 2 is a too aggressive on ca piss.

[mike@x-ph.com]

Originally Posted by EBM4

When I log into the app it says zero but I am assuming I have to be in the car with the car running. I will check in the AM. But shouldn't Map 2 in general be fine for CA 91 octane.

No map 2 needs 93 octane minimum and downpipes

Map 2: Slightly more aggressive version of map 1 intended for vehicles with exhaust modifications and 93+ octane fuel. Can also be used with E85 and racing fuel mixtures. Requires Stage2. Stage3 fuel connector suggested.

[EBM4]

Originally Posted by mike@x-ph.com

No map 2 needs 93 octane minimum and downpipes

Map 2: Slightly more aggressive version of map 1 intended for vehicles with exhaust modifications and 93+ octane fuel. Can also be used with E85 and racing fuel mixtures. Requires Stage2. Stage3 fuel connector suggested.

I have all the mods I'm just stuck with CA piss, I just switched back to Map 0 the car feels a hell of a lot better on stock. I'm gonna head to So Cal later this month and have SSR do a back end flash and stack the JB over the top if needed.

[EBM4]

Originally Posted by CaryTheLabelGuy

Your trims are through the roof and it's causing the DME to lower AFR targets (this is a safety feature) and your AFRs are dipping down into the low 10:1 range with is causing misfiring.

What is your Fuel Open Loop set at? You really need a back-end flash or you'll need port injection (and E85) or meth injection (and E85). You need to run Map 1 or map 4 (stock boost) for now until you can get this sorted out.

Cary Fuel open loop was at "60"

[CaryTheLabelGuy]

Originally Posted by EBM4

Cary Fuel open loop was at "60"

It probably won't help you much since you're running pure turbos, but you should increase your FOL to 70 and if you have a ZCP, you can go to 80 safely. However, a good BEF will go a long way in helping your situation.

You're going to need more octane though. Do you have access to E85?

[Mike@N54Tuning.com]

Originally Posted by EBM4

When I log into the app it says zero but I am assuming I have to be in the car with the car running. I will check in the AM. But shouldn't Map 2 in general be fine for CA 91 octane.

FYI map3 is the "low grade fuel" 91 octane map.

Mike

[EBM4]

Originally Posted by CaryTheLabelGuy

It probably won't help you much since you're running pure turbos, but you should increase your FOL to 70 and if you have a ZCP, you can go to 80 safely. However, a good BEF will go a long way in helping your situation.

You're going to need more octane though. Do you have access to E85?

Nothing close by with E85 I would have to drive 30min away every time I needed to fill up. That location has race fuel on the pump also.

[dmk08]

Originally Posted by EBM4

Nothing close by with E85 I would have to drive 30min away every time I needed to fill up. That location has race fuel on the pump also.

Yeah I drive 15 mins each way to get E85. A bit of an inconvenience but the car runs so great on it! My car is only a weekend car and I only fill it up about once a month tho.

[///F80M3]

Update: Removed plugs and tips were black with only 6k miles on them. I was told it was due to running rich with the e30. Replaced with Ngk 97506 gapped to .020.

Holy shit!! Car pulls like a rocket on map 1 so far. Can't believe I missed out on the power lol. I never felt this consistent power from the jb4 since installing it.

I recommend anyone with jb4 to gap the plugs even if you aren't having any issues.

Now it's time for map 2!!

[CaryTheLabelGuy]

Originally Posted by ///F80M3

Update: Removed plugs and tips were black with only 6k miles on them. I was told it was due to running rich with the e30. Replaced with Ngk 97506 gapped to .020.

Holy shit!! Car pulls like a rocket on map 1 so far. Can't believe I missed out on the power lol. I never felt this consistent power from the jb4 since installing it.

I recommend anyone with jb4 to gap the plugs even if you aren't having any issues.

Now it's time for map 2!!

Bad advice.

I do not advise re-gapping plugs just because. If you are having mis-fire issues, absolutely and even then, you should still try and run as much gap as possible. Picking an arbitrary number and gapping all the way down to it without working your way down from stock gap isn't smart.

As for these NGK plugs, who told you to run those over the stock plugs? Do they cross-reference to the stock Bosch plugs?

I'm not trying to piss in your Cherios. I'm glad you are running good now, but I think you probably gapped down too far, too fast.

[///F80M3]

Originally Posted by CaryTheLabelGuy

Bad advice.

I do not advise re-gapping plugs just because. If you are having mis-fire issues, absolutely and even then, you should still try and run as much gap as possible. Picking an arbitrary number and gapping all the way down to it without working your way down from stock gap isn't smart.

As for these NGK plugs, who told you to run those over the stock plugs? Do they cross-reference to the stock Bosch plugs?

I'm not trying to piss in your Cherios. I'm glad you are running good now, but I think you probably gapped down too far, too fast.

Everyone on the forum told me to gap to .020 because I was misfiring including yourself. The ngk plugs are two step colder than Bosch and OEM equivalent to n20 plugs. Terry posted about these new plugs on n54.

[CaryTheLabelGuy]

Originally Posted by ///F80M3

Everyone on the forum told me to gap to .020 because I was misfiring including yourself. The ngk plugs are two step colder than Bosch and OEM equivalent to n20 plugs. Terry posted about these new plugs on n54.

I said to slowly gap-down from where you were and that you might have to go down to .020. That was with the stock plugs, a different plug will react differently, especially considering possibly different indexing. Ive always said to run the most gap you can without misfires. Every setup will be different.

[JoeyBananas]

Hate to get off topic but does MAP2 require fuel mass connector? Or just race gas map?

[CaryTheLabelGuy]

Originally Posted by JoeyBananas

Hate to get off topic but does MAP2 require fuel mass connector? Or just race gas map?

Map 2 requires the Fuel Pressure Sensor connection, yes. Map 2 also requires 93 or better octane. I personally agree with needing downpipes to help raise the detonation threshold slightly (by less backpressure) for pump 93. If using E85 mixtures of E30 or better (ZCP) or racegas, you can get away with the stock downpipes for map 2 or better.

[JoeyBananas]

Originally Posted by CaryTheLabelGuy

Map 2 requires the Fuel Pressure Sensor connection, yes. Map 2 also requires 93 or better octane. I personally agree with needing downpipes to help raise the detonation threshold slightly (by less backpressure) for pump 93. If using E85 mixtures of E30 or better (ZCP) or racegas, you can get away with the stock downpipes for map 2 or better.

Ok thanks. I have Downpipes too, will install everything after 1200 service

[CaryTheLabelGuy]

Inbox cleared.