need help - Toyota Yaris Forums

Nixk · 04-22-2011, 07:01 PM

hey, my name is Nick, i have a 01 echo(platz)turbo(since this morning),,, im new on this forum. i have a little problem with my car. i started tha car this afternoon for the first time and it is rough idling and when i press the gaz its like nothing happening but sudently it goes....... then nothing.... then go etc...my MAF it next the TB then BOV to IC to turbo. my wideband indicate about 17 afr at idle witch i dont think is normal with my 1zz injectors, anybody had this problem??
btw i have a FIC not plugged yet, i dont think its supossed to run like this even without the fic cuz as a read in the others threads the engine should run normaly but a little lean.
hope you understand what i mean

sorry for my poor english i speak french

thank you

cali yaris · 04-22-2011, 07:13 PM

what turbo? internal gate? psi?

more pictures, with location of BOV. Intercooler?

All connections, vacuum etc. checked and rechecked?

Nixk · 04-22-2011, 07:39 PM

turbo garrett t2560r internal wastegate, i dont think the turbo is the problem, sounds like misfire i can feel it when im in the car at idle, ill post some pictures in few minutes, thanks for helping me

Nixk · 04-22-2011, 07:48 PM

ok here are the pictures

haschel · 04-22-2011, 09:24 PM

Check your Pm nixk ;)

Focus_Sh1ft · 04-23-2011, 09:12 PM

Quote:

sudently it goes....... then nothing.... then go etc

SO is it rev hunting? Did you have the FIC installed prior to the turbo (and tried starting the car)? I assume you're using the bypass plug?

Nixk · 04-24-2011, 06:36 AM

no the fic is not installed yet, i thought it would work without it. as i can read in some of your post,,the first time you started it without your fic right?
someone told me that it is normal for an engine to skip like mine does when the afr is really lean, i noticed that the first seconds i start, the car its about 15afr and its runing pretty much normal til it get to 17. i plan to install the fic today i hope i wont have this issue again, i will use your fuel map you shared on your thread i dont think its gonna be perfect but it cant be worse, anyway ill work on it later... and ill clamp my MAF asap.

What is rev hunting?

Focus_Sh1ft · 04-24-2011, 09:22 PM

Alright you're confusing me... Is the FIC installed and you're using the bypass plug? Even with the bypass plug, if you wired it incorrectly it can cause issues.

Nixk · 04-24-2011, 09:39 PM

its not installed

Focus_Sh1ft · 04-24-2011, 09:53 PM

Try unplugging the AFR sensor and see where your AFRs end up.

Nixk · 04-25-2011, 07:13 PM

yahoooo,,, this morning i wired up my fic then i made a fuel map in 1 minute and it works lol :D well,, its not perfect but it works and my afr went back down to 14-15 at idle... and about 11 in wot,,,, i will work my map tomorrow and ill make some datalogging, i have only 2 TDC one for my power steering pump and the other one for the maf, ill clamp it tomorrow. i only have one problem and its my oil return gasket leaking but its not that bad. :)

hey focus, did you ''play'' with your cam sensor yet? or you only run the fuel map and the maf??

Nixk · 04-25-2011, 07:37 PM

here is my second vid :)
http://www.youtube.com/watch?v=SfnWIelpS3M

Nixk · 05-14-2011, 04:10 PM

ok, it been 3 weeks i didnt post here, my car was fine til today,,, ok im
lying

, i have another problem and i need some help please.
my car runs soooo rich, when im idling its not that bad but when i press the pedal the car doesnt accelerate til the boost come. I made some datalogging and i see the part when it does that. I wanted to change values in this range but i cant because it is already 0.8 on my fuel map.i run the car open loop (without o2) and i was wondering,,, it is still a lil cold here, right now its about 6degrees outside, do you think the IAT could cause this issue?

My injectors are 1zzfe and im using the FIC
thanks for helping me

Focus_Sh1ft · 05-14-2011, 08:48 PM

Quote:

it is still a lil cold here

There's your problem.

What I do (since you can't use 0 or negative values in the fuel map) is put a maf clamp over the entire map. I think I have my MAF map set to MAP load and percent. This allows you to lean out the entire map. Then, you can richen the entire map (duty cycle percent in the fuel map) back to where you want it to be.

Oh also - you're going to need a substantial maf clamp. The ECU is richening the mix because the IAT is cold, but remember - it thinks you have 1NZ injectors, when in actuality you have 1ZZ.

Nixk · 05-14-2011, 09:28 PM

thanks for your help
what is a substential maf clamp?
i though i clamped my maf but when i made some datalogging, i realized my maf in and maf out were still increasing more than the value i put in my maf map, may be i didnt wire it the right way. Can you explain how you clamped your maf map? and how i can lean out the entire map without going below 0. I am not sure i understand

pimp my yaris · 05-15-2011, 12:04 PM

When I first installed my 2azfe injectors I had similar problem. You will need to run negative numbers in your map, when runing without boost. I am at -28% in my fic map. you will need to experament a little to see what runs best with your injectors. Do you have a wideband o2 sensor? Its a great help when tuning. I tune for 14:1 afr when driving normal and 11.5:1 when in the boost.

Nixk · 05-15-2011, 12:31 PM

Quote:

Originally Posted by pimp my yaris

Do you have a wideband o2 sensor? Its a great help when tuning. I tune for 14:1 afr when driving normal and 11.5:1 when in the boost.

i have a wideband, and i tried to put some negative values in my map and my car didnt take it i had to stop on the side and undo the changes i made

pimp my yaris · 05-15-2011, 06:15 PM

I started making adjustments only at the two boxes on the map graph where my car idles. In the lower left hand corner of my fuel map.I started making small adjustments with negative percentages until I had a idle about 14:1 afr. Then I used that percentage for the entire bottom of my map from 15psi load and under. I used a positive number at the top of my map. I think its set at 60% now. And U can use the software to make the map linear by highlighting all the boxes between the top of the map and the 15 psi line and then right click on the mouse and press calculate. If you have your guage screen open and your fuel map open their will be a green box on your fuel map that shows the exact spot in the map where your engine is running in live time. Make small changes. I usually change 5% at a time until I get the afr I want.

04-22-2011, 07:13 PM	#2
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	what turbo? internal gate? psi? more pictures, with location of BOV. Intercooler? All connections, vacuum etc. checked and rechecked? __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

05-14-2011, 04:10 PM	#13
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	ok, it been 3 weeks i didnt post here, my car was fine til today,,, ok im lying, i have another problem and i need some help please. my car runs soooo rich, when im idling its not that bad but when i press the pedal the car doesnt accelerate til the boost come. I made some datalogging and i see the part when it does that. I wanted to change values in this range but i cant because it is already 0.8 on my fuel map.i run the car open loop (without o2) and i was wondering,,, it is still a lil cold here, right now its about 6degrees outside, do you think the IAT could cause this issue? My injectors are 1zzfe and im using the FIC thanks for helping me

04-22-2011, 07:39 PM	#3
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	turbo garrett t2560r internal wastegate, i dont think the turbo is the problem, sounds like misfire i can feel it when im in the car at idle, ill post some pictures in few minutes, thanks for helping me

04-22-2011, 09:24 PM	#5
haschel Drives: Yaris 5 doors Join Date: Aug 2009 Location: Eastern township Qc Posts: 12	Check your Pm nixk ;)

04-24-2011, 06:36 AM	#7
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	no the fic is not installed yet, i thought it would work without it. as i can read in some of your post,,the first time you started it without your fic right? someone told me that it is normal for an engine to skip like mine does when the afr is really lean, i noticed that the first seconds i start, the car its about 15afr and its runing pretty much normal til it get to 17. i plan to install the fic today i hope i wont have this issue again, i will use your fuel map you shared on your thread i dont think its gonna be perfect but it cant be worse, anyway ill work on it later... and ill clamp my MAF asap. What is rev hunting?

04-24-2011, 09:22 PM	#8
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	Alright you're confusing me... Is the FIC installed and you're using the bypass plug? Even with the bypass plug, if you wired it incorrectly it can cause issues.

04-24-2011, 09:39 PM	#9
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	its not installed

04-24-2011, 09:53 PM	#10
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	Try unplugging the AFR sensor and see where your AFRs end up.

04-25-2011, 07:13 PM	#11
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	yahoooo,,, this morning i wired up my fic then i made a fuel map in 1 minute and it works lol :D well,, its not perfect but it works and my afr went back down to 14-15 at idle... and about 11 in wot,,,, i will work my map tomorrow and ill make some datalogging, i have only 2 TDC one for my power steering pump and the other one for the maf, ill clamp it tomorrow. i only have one problem and its my oil return gasket leaking but its not that bad. :) hey focus, did you ''play'' with your cam sensor yet? or you only run the fuel map and the maf??

04-25-2011, 07:37 PM	#12
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	here is my second vid :) http://www.youtube.com/watch?v=SfnWIelpS3M

05-14-2011, 09:28 PM	#15
Nixk Drives: blue 2001 echo Join Date: Apr 2011 Location: CA Posts: 13	thanks for your help what is a substential maf clamp? i though i clamped my maf but when i made some datalogging, i realized my maf in and maf out were still increasing more than the value i put in my maf map, may be i didnt wire it the right way. Can you explain how you clamped your maf map? and how i can lean out the entire map without going below 0. I am not sure i understand

05-15-2011, 12:04 PM	#16
pimp my yaris C'est la vie Drives: 2009 2 door hatchback Join Date: Aug 2009 Location: chicago Posts: 482	When I first installed my 2azfe injectors I had similar problem. You will need to run negative numbers in your map, when runing without boost. I am at -28% in my fic map. you will need to experament a little to see what runs best with your injectors. Do you have a wideband o2 sensor? Its a great help when tuning. I tune for 14:1 afr when driving normal and 11.5:1 when in the boost.

05-15-2011, 06:15 PM	#18
pimp my yaris C'est la vie Drives: 2009 2 door hatchback Join Date: Aug 2009 Location: chicago Posts: 482	I started making adjustments only at the two boxes on the map graph where my car idles. In the lower left hand corner of my fuel map.I started making small adjustments with negative percentages until I had a idle about 14:1 afr. Then I used that percentage for the entire bottom of my map from 15psi load and under. I used a positive number at the top of my map. I think its set at 60% now. And U can use the software to make the map linear by highlighting all the boxes between the top of the map and the 15 psi line and then right click on the mouse and press calculate. If you have your guage screen open and your fuel map open their will be a green box on your fuel map that shows the exact spot in the map where your engine is running in live time. Make small changes. I usually change 5% at a time until I get the afr I want.