|
|
Joined: Feb 2004
Posts: 120
CEG\'er
|
OP
CEG\'er
Joined: Feb 2004
Posts: 120 |
I understand that if you replace 17# injectors (or whatever comes in 98 svt's) with the green 19# injectors you have to let the computer know. This can be done with a chip. My question is how is this done with a chip?
Is it done by adjusting the air/fuel curves? Or is there some type of memory circuit that stores the injector size? Any help would be much appreciated.
|
|
|
|
|
Joined: May 2000
Posts: 1,359
Webmaster
|
|
Webmaster
Joined: May 2000
Posts: 1,359 |
Dude, the SVT comes with 19lb injectors.
The green 19's are for returnless systems, they won't even remotely work without changing the entire fueling system and the PCM.
-Lance
Lance Kinley
CEG Webmaster
95 SE, "Cassandra"
10 years!
|
|
|
|
|
Joined: Feb 2004
Posts: 120
CEG\'er
|
|
OP
CEG\'er
Joined: Feb 2004
Posts: 120 |
Actually Lance they do work cause I have them on my car now and it runs fine. I have a 98 that came with orange top and I bought a new LIM that came with new green top injectors and I simply modified one notch on the injetors to make them fit the orange top electrical conncetors and they worked fine.
I was just wondering if the computer has a memory somewhere that says that there are 17# injectors or if it is strictly a mechaincal thing?
|
|
|
|
|
Joined: Jun 2004
Posts: 213
CEG\'er
|
|
CEG\'er
Joined: Jun 2004
Posts: 213 |
Originally posted by Lance Kinley:
Dude, the SVT comes with 19lb injectors.
Your car should have already had 19's setup in a return system.
'98 CSVT
3L Hybrid
"It all comes down to how fast you want your money to go."
______________________________________________
View Profile
|
|
|
|
|
Joined: Feb 2004
Posts: 120
CEG\'er
|
|
OP
CEG\'er
Joined: Feb 2004
Posts: 120 |
I was under the impression that the orange injectors were less pounds/hour than the green injectors. And I swaped the orange injectors out for grenn ones.
|
|
|
|
|
Joined: Dec 2001
Posts: 3,570
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Dec 2001
Posts: 3,570 |
No. Both orange and green top-fed injectors found in the SVT's are 19#'s. The pre-98 SE's had orange injectors too, but they were bottom fed and only 17#'ers
|
|
|
|
|
Joined: Feb 2004
Posts: 120
CEG\'er
|
|
OP
CEG\'er
Joined: Feb 2004
Posts: 120 |
I must have gotten those two confused. My bad, thanks for the help guys.
|
|
|
|
|
Joined: Jun 2003
Posts: 1,145
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Jun 2003
Posts: 1,145 |
but back to the question yes the ECU knows what size injectors should be in there, and if its not right, like in my case, it tells you are running rich, or lean if you went smaller??
98.5 Black SE ATX
S&B filter, SVT MAF, optimized SVT TB, mesh grille, removed orange reflectors, painted rear reflector, gutted pre-cats, optimized SVT LIM, 19lb injectors, resonator removed
cant afford an svt but lookin for 1 in nc
|
|
|
|
|
Joined: Mar 2002
Posts: 1,325
Hard-core CEG\'er
|
|
Hard-core CEG\'er
Joined: Mar 2002
Posts: 1,325 |
Originally posted by gearhead98:
but back to the question yes the ECU knows what size injectors should be in there, and if its not right, like in my case, it tells you are running rich, or lean if you went smaller??
Yes - but it's not guranteed to trip a CEL.
The diff from a 17# to 19# is just plus 11.7%, the fuel trim will not trip a CEL until +/-20ish% trim, so likely it will just pull in the mixture in and run with negative trims. It'll run funky till it pulls in the mixtures, but it does it within a couple drive cycles.
I think where people get into trouble is that the later contours run with like 50psi fuel pressure, so if they swap in a mustang 19#er that is specd in the 38ish or low 40ish psi range they will get an equivalent to a 21# or 24# (forget the exact #) injector...
I ran my car for about a year with 19# mustang injectors on my "regualr" fuel pressure system before getting a chip.
97 Contour SE MTX
K&N 3530, UR UDP, 19# Injectors, mystery mod, FMS wires, Fordchip.com chip, SVT: TB, Flywheel, clutch, exhaust
04 Grand Caravan SXT
|
|
|
|
|
Joined: Aug 2001
Posts: 17,248
CEG road warrior
|
|
CEG road warrior
Joined: Aug 2001
Posts: 17,248 |
You guys need the neon green injectors like I have.  
Hector
2003 Rally Red Mitsubishi Evolution VIII
257HP/259TQ
2005 Lapis Blue Mazda 6s
RET: 00 Cabernet Red Ford Contour Zetec ATX SUPERCHARGED
160HP/141TQ
|
|
|
|
|
