THROTTLE BODY SWAP NO CEL!!!! - Page 3 - Toyota Yaris Forums

*tk-421* · 07-02-2010, 02:12 PM

Quote:

Originally Posted by kou

So its has been a week and still going great.One cel/code popped up which was a p0171(bank 1 system lean.)This only happened once on a 95degree day with high humidity the AC on stuck in traffic,cel turned off on it's own the next day so i am sure its because of the conditions that day caused the cel.

Did you do a coolant line bypass on the 1ZZ TB? I did, and I've literally never had a CEL with my TB.
Although it may not be advisable under very cold weather for what I hear (we don't get too many of those down here)...

kou · 07-02-2010, 02:15 PM

Quote:

Originally Posted by tk-421

Did you do a coolant line bypass on the 1ZZ TB?

Yes i did,i am thinking about putting it back in the fall.

kou · 07-02-2010, 02:17 PM

I have had this code before with the stock setup so i am not to concerned.

sito · 07-03-2010, 06:17 AM

Quote:

Originally Posted by kou

So its has been a week and still going great.One cel/code popped up which was a p0171(bank 1 system lean.)This only happened once on a 95degree day with high humidity the AC on stuck in traffic,cel turned off on it's own the next day so i am sure its because of the conditions that day caused the cel.High humidity not good.

Kou, i also have the same symptom as yours. AC on, stuck in traffic, CEL on. But my error is p0172(bank 1 rich). CEL went off on its own on the next day.

Now still monitoring what causes this CEL.

moh · 07-03-2010, 10:43 PM

i got a TB with part number #22030-0D030 and want to install it next week.
should i do chip swap and idle screw adjustment? and what about coolant bypass?

*Astroman* · 07-03-2010, 11:02 PM

Quote:

Originally Posted by moh

i got a TB with part number #22030-0D030 and want to install it next week.
should i do chip swap and idle screw adjustment? and what about coolant bypass?

Just try swapping over first like I did. Didn't need to do a chip swap or idle screw adjustment.

I didn't do the coolant bypass because it can get pretty cold where I live and I don't want any issues. Car works awesome with it hooked up.

sito · 07-08-2010, 05:45 AM

Hi Guys,

I had swapped my 1NZFE chip into the 1ZZFE throttle body but after one day of driving... CEL light up.. error code 0172 (fuel trim too rich bank 1)

I reset my ecu, and drove again... and the next day... the same error code came out....

These two codes came when i was moving off slowly and with air con on.

I swapped the 1ZZFE chip (part number #22030-0D030) back onto the throttle body and there's no CEL till now. But i could feel rpm oscillations when car was slowing down. By adjusting the idling screw, does it helps to remove the oscillations?

Should i stick to 1ZZFE chip or try making the 1NZFE chip works?

Thanks everyone!

sito · 07-08-2010, 11:01 PM

Any advice, please?

Thanks...

*tk-421* · 07-09-2010, 01:25 AM

Quote:

Originally Posted by sito

Should i stick to 1ZZFE chip or try making the 1NZFE chip works?

Leave the 1NZ chip in. That's the way I have it and it works great.

sito · 07-09-2010, 04:49 AM

Quote:

Originally Posted by tk-421

Leave the 1ZZ chip in. That's the way I have it and it works great.

Thanks for your advice, tk-421.

Are you using the 1ZZFE chip with the 1ZZFE throttle body too?

Thanks....

*tk-421* · 07-09-2010, 01:23 PM

Sorry, I meant to say to leave the 1NZ chip on the 1ZZ TB. I made the swap and I haven't had any issues so far, other that a high idle when cold starting the car.

On the other hand, I've heard from some people that didn't need to swap the chip at all (1zz chip on 1zz TB). I have a theory that the issue is directly related to the TB serial number, but I can't say for sure. I tried compiling a list of serials a few months ago, but it didn't catch on.

sito · 07-09-2010, 01:44 PM

Quote:

Originally Posted by tk-421

Sorry, I meant to say to leave the 1NZ chip on the 1ZZ TB. I made the swap and I haven't had any issues so far, other that a high idle when cold starting the car.

On the other hand, I've heard from some people that didn't need to swap the chip at all (1zz chip on 1zz TB). I have a theory that the issue is directly related to the TB serial number, but I can't say for sure. I tried compiling a list of serials a few months ago, but it didn't catch on.

Thanks for the advice,tk-421...

With your 1NZ chip on the 1ZZ TB, did you experience any jerking (around 1300rpm) while you were driving?

Did you adjust your idling screw? How many turns did you adjust? Anti-clockwise?

Thanks in advance, tk-421...

kou · 07-16-2010, 02:43 PM

Still running great no CEL.

*tk-421* · 07-17-2010, 02:39 AM

Quote:

Originally Posted by sito

Thanks for the advice,tk-421...

Don't mention it.

Quote:

With your 1NZ chip on the 1ZZ TB, did you experience any jerking (around 1300rpm) while you were driving?

The bigger TB will increase your overall throttle response. There's a bit on an adjustment required on your part (basically, one needs to be less hard on the pedal). Although to be honest, the throttle controller that I have installed makes that effect much more apparent.

Quote:

Did you adjust your idling screw? How many turns did you adjust? Anti-clockwise?

I can't remember right now, but I believe it was more to the right (CW) than the left (CCW), but it really should depend on your particular installation. You can adjust it while the engine is on, but don't trust it too much... The ECU will also try to auto-adjust over the next few days. If you don't feel that it's perfect you can always try adjusting it further. Just be careful not to strip the screw!

sito · 07-26-2010, 07:53 AM

Quote:

Originally Posted by tk-421

Don't mention it.

The bigger TB will increase your overall throttle response. There's a bit on an adjustment required on your part (basically, one needs to be less hard on the pedal). Although to be honest, the throttle controller that I have installed makes that effect much more apparent.

I can't remember right now, but I believe it was more to the right (CW) than the left (CCW), but it really should depend on your particular installation. You can adjust it while the engine is on, but don't trust it too much... The ECU will also try to auto-adjust over the next few days. If you don't feel that it's perfect you can always try adjusting it further. Just be careful not to strip the screw!

Thanks for the advice, tk-421....

IVAN_TRD · 01-31-2011, 07:43 PM

i have scion tc tb in my yaris

ROCKLAND TOYOTA · 02-01-2011, 09:32 AM

Quote:

Originally Posted by IVAN_TRD

i have scion tc tb in my yaris

is it from a Z or R motor???

kou · 02-01-2011, 04:01 PM

wow thread back from the dead. anyway may car is still running great no cel just a little high idle in the winter months but it is all good.

07-03-2010, 10:43 PM	#41
moh Drives: Yaris Sedan Join Date: Jun 2010 Location: -6.304976,106.765952 Posts: 7	i got a TB with part number #22030-0D030 and want to install it next week. should i do chip swap and idle screw adjustment? and what about coolant bypass? __________________ \|Blitz S/C\|aFe Intake\|NST SSK\|NST Busing kit\|Ralco Short Shifter\|Dastek Unichip type Q\|Dastek Throttle Control\|1ZZ Injectors\|1ZZ TB\|Custom Header\|Custom Exhaust\|Head Porting\|Momo Drifting Steering wheel\|Momo shiftknob\|Denso Irridium Sparks\|Buddy Club P1 Racing Wheels\|195/50/R15\|Tanabe NF Coilover\|Goodrich SS brake lines\|Ultra Racing Front Strutbar\|NRG Grounding kit\|Custom Grill\|Custom Eyelid\|Rear Sway bar\|

07-09-2010, 01:23 PM	#47
tk-421 Super Moderator View User's Garage Drives: 5D-07-LB Join Date: Jan 2007 Location: Dagobah Posts: 4,263	Sorry, I meant to say to leave the 1NZ chip on the 1ZZ TB. I made the swap and I haven't had any issues so far, other that a high idle when cold starting the car. On the other hand, I've heard from some people that didn't need to swap the chip at all (1zz chip on 1zz TB). I have a theory that the issue is directly related to the TB serial number, but I can't say for sure. I tried compiling a list of serials a few months ago, but it didn't catch on. __________________ --[ FORUM RULES ]--[ SEARCHING TIPS ]--[ EYELIDS PICS ]--[ RBK SPOILER ]--[ BEST/WORST INVESTMENTS ]--

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07-02-2010, 02:17 PM	#39
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	I have had this code before with the stock setup so i am not to concerned.

07-08-2010, 05:45 AM	#43
sito Drives: Toyota Join Date: Mar 2010 Location: Singapore Posts: 48	Hi Guys, I had swapped my 1NZFE chip into the 1ZZFE throttle body but after one day of driving... CEL light up.. error code 0172 (fuel trim too rich bank 1) I reset my ecu, and drove again... and the next day... the same error code came out.... These two codes came when i was moving off slowly and with air con on. I swapped the 1ZZFE chip (part number #22030-0D030) back onto the throttle body and there's no CEL till now. But i could feel rpm oscillations when car was slowing down. By adjusting the idling screw, does it helps to remove the oscillations? Should i stick to 1ZZFE chip or try making the 1NZFE chip works? Thanks everyone!

07-08-2010, 11:01 PM	#44
sito Drives: Toyota Join Date: Mar 2010 Location: Singapore Posts: 48	Any advice, please? Thanks...

07-16-2010, 02:43 PM	#49
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	Still running great no CEL.

01-31-2011, 07:43 PM	#52
IVAN_TRD Drives: YARIS Join Date: Sep 2010 Location: PUERTO RICO Posts: 11	i have scion tc tb in my yaris

02-01-2011, 04:01 PM	#54
kou View User's Garage Drives: 08 lb Join Date: Aug 2007 Location: nj Posts: 935	wow thread back from the dead. anyway may car is still running great no cel just a little high idle in the winter months but it is all good.