5vz-fe fuel injectors: Why did they change after '98?
01-25-2006, 06:53 PM
#1
Contributing Member
Thread Starter
iTrader: (1)
Join Date: Apr 2005
Location: Colorado
Posts: 4,683
Likes: 0
Received 0 Likes
on
0 Posts
5vz-fe fuel injectors: Why did they change after '98?
I remember reading something about a fuel delivery "problem" that Toyota fixed in '99
Is that true and what exactly was the problem?
Is that true and what exactly was the problem?
01-25-2006, 07:15 PM
#4
Registered User
Join Date: Jun 2003
Location: Vancouver, Canada
Posts: 943
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Toysrme
Denso injectors changed to their new style.
01-26-2006, 09:27 AM
#7
Contributing Member
Originally Posted by Weasy2k
Thus the 97+ supercharger kit only....cause the "ecu" cant handle it for the 95-96's...
Trending Topics
01-26-2006, 10:03 AM
#8
Registered User
Join Date: Jun 2003
Location: Vancouver, Canada
Posts: 943
Likes: 0
Received 0 Likes
on
0 Posts
doesnt have stock injectors and the stock ecu is assisted by a piggyback like everyone else.
There is NO difference between the years besides a MINOR upgrade to the injectors and the ecu was adjusted to go along with it.
Still everyone has to upgrade the injectors and get a piggyback to control them
There is NO difference between the years besides a MINOR upgrade to the injectors and the ecu was adjusted to go along with it.
Still everyone has to upgrade the injectors and get a piggyback to control them
02-01-2006, 12:54 AM
#9
Contributing Member
Thread Starter
iTrader: (1)
Join Date: Apr 2005
Location: Colorado
Posts: 4,683
Likes: 0
Received 0 Likes
on
0 Posts
Thanks. So the 'minor' injector upgrade was only because of the added supercharger?? I'm almost 100% positive that i remember reading a thread where someone mentioned the fuel injector change was made because of a prolonged problem with pre '99 3.4s which contributed to some type of engine trouble/failure.
02-04-2006, 09:07 PM
#11
Registered User
Join Date: May 2002
Location: Southern MD USA
Posts: 1,539
Likes: 0
Received 0 Likes
on
0 Posts
The pre 99 and 99 and later stock injectors have the same flow capacity.
The newer injectors are no longer Denso and are completely injected molded plastic, most likely a cost cutting measure.
The folks in Japan have not done anything to the fuel system or ECU calibration to make it better for TRD's aftermarket supercharger.
Gadget
The newer injectors are no longer Denso and are completely injected molded plastic, most likely a cost cutting measure.
The folks in Japan have not done anything to the fuel system or ECU calibration to make it better for TRD's aftermarket supercharger.
Gadget
02-04-2006, 11:32 PM
#12
Registered User
Join Date: Jun 2003
Location: Vancouver, Canada
Posts: 943
Likes: 0
Received 0 Likes
on
0 Posts
the 95-96 tacomas did not have the same... i got mine flow tested at 230 and a 2001s came in at 248.
The guys at toyota here (TRD "reps") mentioned same thing that 97+ there were slightly larger injectors due to there change over or what not and of course the ecu was calibrated to reflect that. They also used that as an excuse why you couldnt use the s/c on 95-96 model TACOMAS (not 4runners).
Of course like all toyota dealers its kinda sketchy info but these guys are pritty good.
The guys at toyota here (TRD "reps") mentioned same thing that 97+ there were slightly larger injectors due to there change over or what not and of course the ecu was calibrated to reflect that. They also used that as an excuse why you couldnt use the s/c on 95-96 model TACOMAS (not 4runners).
Of course like all toyota dealers its kinda sketchy info but these guys are pritty good.
Thread
Thread Starter
Forum
Replies
Last Post
