Remote Tuning

cupcakez · 06-15-2018, 08:26 PM

Quote:

Originally Posted by shadow85

Why did you not go with Ecutek? They support 350Z don't they?

nope

ByThaBay · 06-15-2018, 09:51 PM

Quote:

Originally Posted by shadow85

Why did you not go with Ecutek? They support 350Z don't they?

Unfortunately there is no support for the HR models with ecutek.

NissanTracker · 06-20-2018, 02:12 PM

Quote:

Originally Posted by Martijn_b

Have you made a decision yet?

Ps: just because i can code java doesn't mean i can tune cars - which has a lot more physics knowledge involved. But surely the skills which you need for programming (esp professionally for large companies with complex systems) help you to analyze and solve complex situations.

I agree. I can't tune and I'm an embedded and mobile app SW engineer. I picked up a couple EFI books to get more familiar with the fuel injected dynamics. The basic physics part is OK. I believe its understanding the platform and what happens with ignition timing when specific events occur... in closed/open loop and how the o2's/MAFs/MAP are used in conjunction.

Other than that... set and press the "Interpolate" button and watch light start bending at WOT

shadow85 · 06-22-2018, 08:24 PM

Speaking of WOT, I am to that part in the remote tuning process for seb lol

The fun stuff begins, but before I do I have to get my wheels aligned/camber adjusted.

So far, sebs tunes have been nothing short of amazing. So glad I listened to evryone and went with him

shadow85 · 06-24-2018, 05:40 AM

Hmm not so good at the moment.

Seb looked at my first WOT pull and said it is running too lean under boost for the amount of fuel he has added to the tune. I am going to take the car back to the workshop and have the fuel system, pump looked over.

turtle64b · 06-24-2018, 12:38 PM

What injectors/pump/fuel system are you running?

What are the symptoms aside from just being lean?

shadow85 · 06-24-2018, 10:56 PM

Cjm s1.e fuel system
340lph pump
Id1050x

The idle and cruise feel fine and the logs show no issues, but as soon as i tried WOT 2nd and 3rd gear, it just hesitated the whole way and it felt like there was no power. I knew something was not rite straight away and seb looked at the logs and told me what to look for.

turtle64b · 06-25-2018, 05:30 PM

Quote:

Originally Posted by shadow85

Cjm s1.e fuel system
340lph pump
Id1050x

The idle and cruise feel fine and the logs show no issues, but as soon as i tried WOT 2nd and 3rd gear, it just hesitated the whole way and it felt like there was no power. I knew something was not rite straight away and seb looked at the logs and told me what to look for.

You literally have the same fuel setup as I do except for I went S1-SE (new fuel rails, I think) haha. Highest injector duty I get to is almost 60 at the moment, nowhere near max.

Did you get the larger wires kit for the fuel pump? There is a known issue where the small stock wiring has too large of a voltage drop from the battery to the pump due to being so small, causing issues with the pump. I think I got the kit from AEM or AMS, I can't remember right now, I'm sorry. It's relatively easy to do though and costs ~$100.

That would be my guess if there was something wrong in the system. Does this track with what you're looking for?

shadow85 · 06-25-2018, 06:24 PM

Quote:

Originally Posted by turtle64b

You literally have the same fuel setup as I do except for I went S1-SE (new fuel rails, I think) haha. Highest injector duty I get to is almost 60 at the moment, nowhere near max.

Did you get the larger wires kit for the fuel pump? There is a known issue where the small stock wiring has too large of a voltage drop from the battery to the pump due to being so small, causing issues with the pump. I think I got the kit from AEM or AMS, I can't remember right now, I'm sorry. It's relatively easy to do though and costs ~$100.

That would be my guess if there was something wrong in the system. Does this track with what you're looking for?

I bought the Fuel pump relay kit from CJM and have it installed already, is that the same thing you are talking about?

Did you install the CJM fuel system yourself, and how long did it take you?

I have a feeling there might be a fuel leak somewhere? When I look at my Ecutek logs for my WOT attempt, it says injector duty bank 1 is max @ 48%.

Both AFR banks are almost identical aswell as both MAF sensor readings.

There its strange because the AFR avg stays around 14.7 before I hit the accel pedal at cruise speeds but as soon as I try WOT the AFR avg raises, goes lean until I take my foot of the pedal again it goes back to normal, around 14.7.

turtle64b · 06-25-2018, 08:11 PM

Quote:

Originally Posted by shadow85

I bought the Fuel pump relay kit from CJM and have it installed already, is that the same thing you are talking about?

Did you install the CJM fuel system yourself, and how long did it take you?

I have a feeling there might be a fuel leak somewhere? When I look at my Ecutek logs for my WOT attempt, it says injector duty bank 1 is max @ 48%.

Both AFR banks are almost identical aswell as both MAF sensor readings.

There its strange because the AFR avg stays around 14.7 before I hit the accel pedal at cruise speeds but as soon as I try WOT the AFR avg raises, goes lean until I take my foot of the pedal again it goes back to normal, around 14.7.

Perfect, really anything that gets bigger wires for the fuel pump is what you want!

I put in the system myself and it took maybe 4 hours between a buddy and me (not including the pump assembly modification). The biggest pain was getting the lines routed to the tank haha. Getting frustrated and taking breaks was at least an hour of that.

Smell around. You will definitely smell a fuel leak if you have one! Probably before you see it.

When you punch it, make sure that you go to the floor with the pedal. Sometimes partial throttle response can be iffy.

To me it sounds as though the engine is either getting more air than it thinks (tune should correct that) or its not getting as much fuel as it needs. If the pump is running, you have the wires it needs to run effectively, so you shouldn't have any issues since your injectors and pump are definitely big enough.

Maybe try watching fuel pressure as best you can while you rev the engine to see if you get pressure drop-off when you rev. You could also rig up a camera or something in the engine bay to watch fuel pressure as you drive.

I had a similar issue occur a few months ago after installing the 9lb pulley and a tranny and power steering cooler. The car ran perfect for a week and suddenly starting running lean across the board. Try talking to Seb about going full speed density. It more complicated from a tuning standpoint, but it cleared up my lean issue completely and now we are working on ironing out the rest of my tune.

I did almost every test in the book to verify all the systems on my car are in good working order.

shadow85 · 06-25-2018, 08:40 PM

Quote:

Originally Posted by turtle64b

Perfect, really anything that gets bigger wires for the fuel pump is what you want!

I put in the system myself and it took maybe 4 hours between a buddy and me (not including the pump assembly modification). The biggest pain was getting the lines routed to the tank haha. Getting frustrated and taking breaks was at least an hour of that.

Smell around. You will definitely smell a fuel leak if you have one! Probably before you see it.

When you punch it, make sure that you go to the floor with the pedal. Sometimes partial throttle response can be iffy.

To me it sounds as though the engine is either getting more air than it thinks (tune should correct that) or its not getting as much fuel as it needs. If the pump is running, you have the wires it needs to run effectively, so you shouldn't have any issues since your injectors and pump are definitely big enough.

Maybe try watching fuel pressure as best you can while you rev the engine to see if you get pressure drop-off when you rev. You could also rig up a camera or something in the engine bay to watch fuel pressure as you drive.

I had a similar issue occur a few months ago after installing the 9lb pulley and a tranny and power steering cooler. The car ran perfect for a week and suddenly starting running lean across the board. Try talking to Seb about going full speed density. It more complicated from a tuning standpoint, but it cleared up my lean issue completely and now we are working on ironing out the rest of my tune.

I did almost every test in the book to verify all the systems on my car are in good working order.

You installed the entire CJM fuel system in 4 hrs??
Charles told me it would take between 5-20 hrs depending on experience and my shop charged me around the 20 hr mark lol

Seb is the one doing my remote tuning actually. I actually thought he was doing a SD tune for me but it turns out it is MAF based. I am upto the 3rd revision but I have just asked him now if it is possible for him to do me a SD tune, waiting on his reply atm.

Im going to purchase a fuel pressure gauge and have that installed soon.

And I rekon I can smell fuel around the car !? But I am on e85 and I am new to e85 so I do not know if it is actually fuel or not lol I have not been in my car for over 6 months before this build completed.

turtle64b · 06-26-2018, 06:02 PM

Quote:

Originally Posted by shadow85

You installed the entire CJM fuel system in 4 hrs??
Charles told me it would take between 5-20 hrs depending on experience and my shop charged me around the 20 hr mark lol

Seb is the one doing my remote tuning actually. I actually thought he was doing a SD tune for me but it turns out it is MAF based. I am upto the 3rd revision but I have just asked him now if it is possible for him to do me a SD tune, waiting on his reply atm.

Im going to purchase a fuel pressure gauge and have that installed soon.

And I rekon I can smell fuel around the car !? But I am on e85 and I am new to e85 so I do not know if it is actually fuel or not lol I have not been in my car for over 6 months before this build completed.

I'm sorry, I've been flying the last two days...

4 hours may be an understatement haha, but it didn't take a long time since everything was already taken apart for the SC and other things install. It was just the one new line and connecting everything.

Bring a friend over or run normal gas in it for a bit maybe? I've never run e85, but I can't imagine it smells too far off of gasoline.

Hotrodz · 06-26-2018, 06:44 PM

Quote:

Originally Posted by turtle64b

I'm sorry, I've been flying the last two days...

4 hours may be an understatement haha, but it didn't take a long time since everything was already taken apart for the SC and other things install. It was just the one new line and connecting everything.

Bring a friend over or run normal gas in it for a bit maybe? I've never run e85, but I can't imagine it smells too far off of gasoline.

LOL, e85 has a noticeably different smell than gasoline. He should be able to smell it as it is has relatively strong odor or maybe it is just the corn I burn.

Sent from my SM-G965U using Tapatalk

shadow85 · 06-26-2018, 09:58 PM

Nah I its definitly a strong smell!

And I think there is a fuel leak, I can smell fuel from the rear to the hood. And the mini pressure gauge is reading 42psi on idle but the vaccum is still also connected so I don't think tha is the true reading.

But when I switch the car off the pressure drops immediatly to 0 when I think it is still suppose to hold for a short while?

jax4557 · 06-26-2018, 11:17 PM

Quote:

Originally Posted by turtle64b

Perfect, really anything that gets bigger wires for the fuel pump is what you want!

I put in the system myself and it took maybe 4 hours between a buddy and me (not including the pump assembly modification). The biggest pain was getting the lines routed to the tank haha. Getting frustrated and taking breaks was at least an hour of that.

Smell around. You will definitely smell a fuel leak if you have one! Probably before you see it.

When you punch it, make sure that you go to the floor with the pedal. Sometimes partial throttle response can be iffy.

To me it sounds as though the engine is either getting more air than it thinks (tune should correct that) or its not getting as much fuel as it needs. If the pump is running, you have the wires it needs to run effectively, so you shouldn't have any issues since your injectors and pump are definitely big enough.

Maybe try watching fuel pressure as best you can while you rev the engine to see if you get pressure drop-off when you rev. You could also rig up a camera or something in the engine bay to watch fuel pressure as you drive.

I had a similar issue occur a few months ago after installing the 9lb pulley and a tranny and power steering cooler. The car ran perfect for a week and suddenly starting running lean across the board. Try talking to Seb about going full speed density. It more complicated from a tuning standpoint, but it cleared up my lean issue completely and now we are working on ironing out the rest of my tune.

I did almost every test in the book to verify all the systems on my car are in good working order.

How is the full SD for driveability? I think he tuned me with a mixture of both and it switches to SD at some point.

06-22-2018, 08:24 PM	#34 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 917 Drives: 15' 370Z A/T AMM TT Rep Power: 24	Speaking of WOT, I am to that part in the remote tuning process for seb lol The fun stuff begins, but before I do I have to get my wheels aligned/camber adjusted. So far, sebs tunes have been nothing short of amazing. So glad I listened to evryone and went with him JARblue, Hotrodz, Spooler and 2 others like this.

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06-24-2018, 05:40 AM	#35 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 917 Drives: 15' 370Z A/T AMM TT Rep Power: 24	Hmm not so good at the moment. Seb looked at my first WOT pull and said it is running too lean under boost for the amount of fuel he has added to the tune. I am going to take the car back to the workshop and have the fuel system, pump looked over.

06-24-2018, 12:38 PM	#36 (permalink)
turtle64b Track Member Join Date: Jun 2015 Location: Granbury, TX Posts: 550 Drives: '11 SC Blue 7AT Rep Power: 3365	What injectors/pump/fuel system are you running? What are the symptoms aside from just being lean?

06-24-2018, 10:56 PM	#37 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 917 Drives: 15' 370Z A/T AMM TT Rep Power: 24	Cjm s1.e fuel system 340lph pump Id1050x The idle and cruise feel fine and the logs show no issues, but as soon as i tried WOT 2nd and 3rd gear, it just hesitated the whole way and it felt like there was no power. I knew something was not rite straight away and seb looked at the logs and told me what to look for.

06-26-2018, 09:58 PM	#44 (permalink)
shadow85 Track Member Join Date: Jul 2015 Location: South Australia, Austra Posts: 917 Drives: 15' 370Z A/T AMM TT Rep Power: 24	Nah I its definitly a strong smell! And I think there is a fuel leak, I can smell fuel from the rear to the hood. And the mini pressure gauge is reading 42psi on idle but the vaccum is still also connected so I don't think tha is the true reading. But when I switch the car off the pressure drops immediatly to 0 when I think it is still suppose to hold for a short while?