97 z28 fuel injectors need help
11-12-2011, 01:50 PM
#1
Staging Lane
Thread Starter
Join Date: Oct 2010
Location: oklahoma city ok.
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
97 z28 fuel injectors need help i think my fuel injectors have gone out the ecm is throwing all kinds of codes for the fuel injectors... so my ? is is what is the factory size for the 97 i want to get 28lb injectors but not sure if i will have to get a bigger TB or a retune i have a 383 with 548 lift cam with a 108 lsa
11-12-2011, 01:52 PM
#2
TECH Resident
iTrader: (3)
Join Date: Nov 2011
Location: mn
Posts: 853
Likes: 0
Received 0 Likes
on
0 Posts
is it the injectors for sure get a node tester and test the singal at the injectors. and i believe there 28lb stock. and i would go a little bigger than that maybe 42lb
11-12-2011, 01:55 PM
#3
TECH Resident
Join Date: Apr 2010
Location: T E X A S
Posts: 787
Likes: 0
Received 0 Likes
on
0 Posts
pretty sure you need bigger injectors as well as a tune... kind of a big cam, what's the duration?
and if it isn't tuned... well there you have your problem a really big change and the computer doesn't know what's going on.
and if it isn't tuned... well there you have your problem a really big change and the computer doesn't know what's going on.
11-13-2011, 12:00 PM
#5
TECH Fanatic
Join Date: Oct 2006
Location: POULSBO WA.
Posts: 1,106
Likes: 0
Received 0 Likes
on
0 Posts
24 lb injectors, i would go 36lb they can handle pretty much all changes in cam and bolt ons and more, so u won't have to change them again. When u make changes in injectors the computer keeps the injectors open in millaseconds if the computer doesn't know the change to bigger u are dumping more fuel. U have a big cam in there now, is it tuned for it? Because it should be, that cam untuned will shut the car down. Hope this makes sense.
11-14-2011, 08:10 AM
#7
Staging Lane
Thread Starter
Join Date: Oct 2010
Location: oklahoma city ok.
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
thans guys and my car is tuned and was tuned by brian at PCM forless i am ot sure bout the duration off the top of my head and where do i get a node tester?
Trending Topics
11-14-2011, 08:55 AM
#8
TECH Resident
Join Date: Apr 2010
Location: T E X A S
Posts: 787
Likes: 0
Received 0 Likes
on
0 Posts
get some 42LB injectors, they will be able to support what you have comfortably as well as leave some room to grow, I am fairly certain that you are probably maxing out the duty cycle on the stockers.
11-14-2011, 10:24 AM
#9
TECH Veteran
11-14-2011, 11:44 AM
#11
TECH Resident
Join Date: Apr 2010
Location: T E X A S
Posts: 787
Likes: 0
Received 0 Likes
on
0 Posts
True, but why not do it all out the first time around since we all know we end up wanting more eventually 
But yes, either will work fine, when shopping for injectors just be sure to get HIGH impedance and stay away from MSD 50#.
But yes, either will work fine, when shopping for injectors just be sure to get HIGH impedance and stay away from MSD 50#.
11-14-2011, 12:24 PM
#14
Staging Lane
Thread Starter
Join Date: Oct 2010
Location: oklahoma city ok.
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
i was talking to a place outta ca. called RCnjectors.com or somethin like that lol anywho they said for a set of 8 its $545 and they are in stock
P054B
P0200A
P1222D
and shbox is the noid light easy to work? and how does it work
P054B
P0200A
P1222D
and shbox is the noid light easy to work? and how does it work
Last edited by casey20000007; 11-15-2011 at 08:08 AM.
11-15-2011, 11:32 AM
#15
TECH Fanatic
iTrader: (8)
Join Date: Jan 2011
Location: Pinellas Park Florida
Posts: 1,550
Likes: 0
Received 0 Likes
on
0 Posts
Unplug injector harness and install noise light. Then have someone crank the engine and see if the light pulses. Do not this on every injector harness.
11-15-2011, 12:42 PM
#16
Staging Lane
Thread Starter
Join Date: Oct 2010
Location: oklahoma city ok.
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
if if were to get some 36lb injectors would i just get a dyno tune or send my pcm off to retune? or both... oh and @Ramair95TA how difficult was it to install your for 9"? and how much did it end up costing? i watched your video. your car sounds awsome what size cam do you have
