startup tune with e85

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

startup tune with e85

Postby juice performance » Tue Jul 05, 2016 5:31 pm

So I have an rb20 with a plugin R32/R33 ecu and haltech wideband connected on e85. It hasn't been tuned yet. I can get it to idle but as soon as i touch throttle it leans out big time and wants to die. I can hold it at 0 vacuum at WOT and sounds like its running on 1 cylinder. The only way i can get a clean rev is if i insert 200 value in the 0 vac column and interpolate back the the first column near idle. very frustrating and I'm unsure of why it would need numbers so high.

I have set it all up as i see it should be. I have entered the dead times for id1000 injectors and increased them 35% (not sure if this is the best way but anyway), i have sat at idle and adjusted them to reach my target lambda also. Im running a haltech 3 bar map and intake temp wired in. Ive also set my base fuel pressure to 58psi (4bar) and set it at that in the main setup window.

I have also tried a second CAS and it acts the same way.

Is there something I've missed

Any info or experience in this matter would be gladly taken on
Cheers

User avatar
blakebonkofsky
Posts: 216
Joined: Sun Aug 02, 2015 2:58 am

Re: startup tune with e85

Postby blakebonkofsky » Wed Jul 06, 2016 5:01 pm

Can you post a copy of your map so that we can look at it?

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

Re: startup tune with e85

Postby juice performance » Wed Jul 06, 2016 10:08 pm

sil_rb20_startup.zip
(12.98 KiB) Downloaded 77 times

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

Re: startup tune with e85

Postby juice performance » Fri Jul 08, 2016 4:55 pm

Anyone have an idea?

User avatar
Peterson
Posts: 121
Joined: Mon Aug 17, 2015 2:35 am

Re: startup tune with e85

Postby Peterson » Fri Jul 08, 2016 5:30 pm

Recheck all wiring and that the values you have entered at your ECU are accurate or close enough.I assume your fuel pump is up to the task.

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

Re: startup tune with e85

Postby juice performance » Fri Jul 08, 2016 9:57 pm

I have had a nistune installed and i tuned with that previously before the haltech and it ran for a track day before the ecu was seeing approx 10° more timing across the map than what it shouldve been. I tried a new cas and no different. Wiring harness is 1 year old.

User avatar
HaltechMatthew
Haltech Staff
Posts: 2452
Joined: Tue Feb 07, 2012 11:45 am
Location: Sydney, Australia
Contact:

Re: startup tune with e85

Postby HaltechMatthew » Tue Jul 12, 2016 3:47 pm

Dead times should be around 1ms @14V, and you should be reducing the flow by around 40% on this model ECU to keep everything in check if you are not using a flex sensor.

Also, did you flip the injector wires around as per the quick start guide for an RB20DET?

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

Re: startup tune with e85

Postby juice performance » Thu Jul 14, 2016 2:01 pm

Hey matt,
Yes i indeed did flip the wires on the ecu before install.

I have now put petrol back into the tank and with the correct dead times from ID the car will not rev freely and leans out up to 0 vac.
As soon as i return the injector flow back to 270 as thats what the base map is and i edit the dead times down to rech my lambda 1 target at idle. It runs and revs like a champ. This is really confusing as this shouldnt be happening.

User avatar
Peterson
Posts: 121
Joined: Mon Aug 17, 2015 2:35 am

Re: startup tune with e85

Postby Peterson » Thu Jul 14, 2016 2:16 pm

Are you sure your injectors are really ID1000? Maybe it's a good idea to have them checked at an injector shop in order to see the operation and true flow out of them at various pressure.

juice performance
Posts: 7
Joined: Tue Jul 05, 2016 5:03 pm

Re: startup tune with e85

Postby juice performance » Thu Jul 14, 2016 2:47 pm

They are xspurt 1000 injectors. So i guess i could have them flow checked. Its just weird. It really shouldnt be happening.


Return to “Tuning Discussions”

Who is online

Users browsing this forum: No registered users and 2 guests