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AZZKIKR
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AZZKIKR

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2003 Toyota Celica GT

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ATL GA
Aug 24, 7:27am - #257884 
no more 1zz fuel cutoff

This is courtesy of c2gas. he doesn't spend much time over here, and I've been trying to get him to post how to get rid of the 1zz fuel cutoff point...Just figured I'd give him FULL CREDIT before I posted.

How to remove the rev-limiter in the 1zz -fe engine:
On the pic below change out the 16 mhz crystals to 18 mhz, and eureka...no more fuel cutoff point!!!!!

1870193510-1zzECU.jpg
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qbanprepster21
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Virginia
Aug 24, 7:33am - #257885 
does it affect anything else in the car?? And i wouldnt see much reason for this unless someone has a fixed up engine, doing this for a stock 1zz is thumbsdown rofl


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AZZKIKR
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AZZKIKR

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Aug 24, 7:48am - #257886 
no other effect on the car. but if you build your 1zz (turbo or NA grin), or even just put in stronger valves and valve springs (MWR equipment), you'll be able to rev past the 6850 fuel cutoff

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Haulin_A_Doo
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Ontario
Aug 24, 8:02am - #257887 
This will definately make neutral bombing better. thumbsup

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AZZKIKR
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AZZKIKR

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Aug 24, 8:14am - #257888 
^^^^^^ LMAO...hehehehehehehehehe, and neat avatar with the snowmobile

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ragingpaseo
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towson, md
Aug 24, 8:27am - #257889 
cool, any like that for the 2zz-ge???

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Haulin_A_Doo
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Ontario
Aug 24, 8:32am - #257890 
Originally Posted by AZZKIKR
^^^^^^ LMAO...hehehehehehehehehe, and neat avatar with the snowmobile


Thanks. grin

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AZZKIKR
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Aug 24, 9:03am - #257891 
Originally Posted by ragingpaseo
cool, any like that for the 2zz-ge???
, yeah I think you can do the same thing with the 2zz and go past the normal redline

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ragingpaseo
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towson, md
Aug 24, 9:05am - #257892 
have you done it yet???

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AZZKIKR
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Aug 24, 9:19am - #257893 
not yet, I found it this morning, and I have an email into MWR about how safe this would be, because they have a huge Turbo MRS that they said they rev to like 8300 rpm!!!, so when they email me back I'll know better

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EuRoBoYGT
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Aug 24, 9:42am - #257894 
Originally Posted by AZZKIKR
no other effect on the car. but if you build your 1zz (turbo or NA grin), or even just put in stronger valves and valve springs (MWR equipment), you'll be able to rev past the 6850 fuel cutoff


well my fuel cut off is at 7300 grin after that i seriously don't think ur car make any more power so you will be loosing power


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AZZKIKR
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Aug 24, 9:46am - #257895 
how'd you get it that high? this mod, or by way of an apexi PFC???????...and yeah, I was gonna go for around 7300 - 7500...plus my engine is built N/A

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EuRoBoYGT
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EuRoBoYGT

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El Paso, TX
Aug 24, 9:49am - #257896 
to tell the truth i don't know how it got that high it used to be at 6900 and then all of the sudden i got it up to 7300 tongue maybe one of those cyrstels got fried but i love redlining that high thumbsup


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ikin
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california
Aug 24, 10:01am - #257897 
this is only good for the stock ecu right? with fc cant you raise it higher anyways

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qbanprepster21
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Virginia
Aug 24, 10:04am - #257898 
Originally Posted by ikin
this is only good for the stock ecu right? with fc cant you raise it higher anyways



yes and yes


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Aug 24, 3:14pm - #257899 
is this for all the 00-UP or just the 02 GT?

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ikin
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california
Aug 24, 3:29pm - #257900 
good question but arent the exus the same for all gt's unlike the gts

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AZZKIKR
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ATL GA
Aug 25, 6:53am - #257901 
yeah, all the GT ecu's are the same...all the fuel cutoff's are at 6850 rpm

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