i bought 72# msd injectors that come with 10 ohm resistors. i put the resistors on inline with the signal wire on each injector just like the instructions told me to. the injectors do not want to spit fuel. i have fuel going all the way up to the fuel rail. i also got my ecu done at xat programmed for the 72# injectors. i have all my grounds on. it may be something simple that im just overlooking. Does anybody have any idea of what this problem could be?

 

ttt

 

anybody? ttt

 

when did you have a ecu done by us ? I do not do send away ECUs... I do all my tunes on the dyno... So if you came in with 72# injectors, I would have tuned it right there and then. Refresh my memory please.

Martin
XAT Racing

 

it seems like your ecu, or something is tweaking out. if you got your ecu tuned for those injectors, especially at XAT, then it would have had to be running.....
there seems to be a missing part to this story....

 

i took my ecu to xat. they told me that the ecu has to be sent to somebody to solder it to put a chip in it and then xat programs it. my program was:

z32 maf
gt2871r .68 a/r
brian crower stage 2 cams
72# injectors

i brought the resistors to xat thinking that it goes into the ecu but they said that it goes on the injector wires. i needed a base map for this setting because i have to break in the car and then take it to the dyno.

 

it may be the ecu then right?

 

no.. sorry.. can not be the ecu. If the ecu is wigged completely out.. even if you install the chips wrong or something physically gets damaged with the code on the chips, it will revert to stupid safe mode and run the injectors and coilpacks.... something else is wrong.. Got 12V at the power wires of the injectors ? pull a plug, plug it into the coil pack... lay it on valve cover and check for spark... fuel pump priming at all ??

martin

 

I agree, at this point you need to start with the basic stuff, check for spark (on all cylinders) and fuel (on all cylinders). might as well do a compression check at this point too.
while you've got your tools out, check your timing. I don't know what the setting is for the BC Stage 2 cams, but it might be different than stock.
check all of that and then we'll see where we are at.

 

fuel lines backwards?