Hondata

I guess you fixed your problem?

Worked Perfectly! 20psi@4600rpm JB turbo

Maybe this will help someone else unless I am the only one that didnt know HEHE :)

T - Target Boost
B - Bar value

(T+14.7)/14.7=B

(B*14.7)-14.7=T

Example if you know your target boost level
Target Boost 18psi
(18+14.7)/14.7=2.22Bar

Example if you know ...

Ok, so to get 18psi of boost I need to set it to 2.22bar

18psi + 14.7psi/14.7psi=2.22bar ???? Close enough? Or totally wrong?

On the QuickSpool option in FlashPro it says MAP(bar) so I set my 4th gear Quick spool table to 1.2 which I believe to be about 17psi ?

So I do a pull and my boost control duty lookup goes up to 99% until approx. 2psi of boost then returns to the 28% boost control duty lookup which is what I have ...

tshay wrote:i thought the 12 to 15:1 a/f was acceptable?

Not under boost you need to be low 12's unless you're running above 12psi would want to be closer to 11.5

Post a datalog and we can get a better idea of what to look at.

The primary o2 sensor is 32 inches from the turbo with a combination of two 90 degrees bends before it. 90 degrees off the turbo then another 90 degree to point down to the ground total of 32 inches.

I replaced the o2 sensor and it seems to have resolved the issue. Before I replaced the o2 sensor I ...

I am not a tuner but I have not blown my engine :)

You need to add fuel to your tune.

0 Degree Low cam angle load lines 3 and 4 Add 15% fuel from 2500rpm down to redline
15 Degree Low cam angle load line 3 and 4 Add 15% fuel from 2500rpm down to redline

See if that resolves your issue

random fuel trims at idle from one extreme to another ? From -10% to +20% S.TRIM for no reason... AFR is steady at 14.9:1 then it starts pulling fuel... goes too lean (almost stalls!).. then adds fuel to get it back. Then idles for a minute or two then pulls fuel again....

For part throttle tuning you lock your cam angles and slowly accelerate. Then adjust your fuel accordingly. and go again

Anyone able to answer my question/s?

Thanks

I would add fuel to your cal or stay completely out of boost until you get a tune. You are way too lean in boost. In your log you are at 3psi of boost with a 14:1 AFR that is like a plasma cutter to your pistons and rings.

And your fuel trim is adding like 40+% fuel for you. But when you go into ...

I would check the valve clearance (some people check between the cam and follower rather at the valve stem) and then check the cam indexing using the arrows on the sensor plates at cam cap #5 (transmission end of the engine).
It it only happens in VTEC and get worse when hot then I would suspect ...

Hondata wrote:It probably is valve train noise, not knock. If you have pulled a lot of timing that could cause the hesitation. Post the calibration/datalog for more analysis.

Attached cal and datalog

The idle is at the end of the log file Calibration

Hondata wrote:It probably is valve train noise, not knock. If you have pulled a lot of timing that could cause the hesitation. Post the calibration/datalog for more analysis.

I will post a datalog when i get home. Thank you