No Injector Pulse! Why?

[phillabaum03]

So only 2 injectors are pulsing. 1 and 2. 3 and 4 ARE NOT! I've checked just about every sensor and swapped 2 other ecu's and still no pulse at 3 and 4. I was asking around to see if a bad CPS would make 2 to NOT pulse but from what people are telling me, they say if the CPS was bad, NONE of the injectors would pulse? Anyone know, or ever had this problem? Its a 95GST. Im tempted to tear the SAFC-II out to make sure those wires arnt bad or something. Its been down for 2 weeks and im getting so fed up. please help a brother out guys.

 

[turbosax2]

Did you check or replace the injector resistor box?

 

[phillabaum03]

is that the one bolted to the firewall? One plug, silver I believe?
if so, yes

 

[fourreGsixty3]

Yes thats the one he is referring to. Whats the voltage going to the 3 & 4 injectors?

 

[phillabaum03]

in the 12's. Their getting power, but their not getting a pulse. Im putting a new CPS in tomorrow, wish me luck

 

[phillabaum03]

no body else knows?/had this problem

 

[phillabaum03]

no love what so ever guys

 

[slipstream808]

Well, how do you know the injectors aren't firing. I'm just curious about that.

 

[phillabaum03]

dry plug, no pulse at injector clip, no start? cmon dude, I need help

 

[TjPhillips36]

Cam position sensor, MFI Relay, ECU. Check the relay first, then the CPS, then the ECU.

 

[phillabaum03]

so I put the crank sensor in, and the car ran. Took it for a victory lap around the neighbor hood, took a right hand turn the the fugger dies like it did the first time. I think I'm wiping these crank sensors out, which could only mean one thing...CRANK FUGGIN WALK

 

[Whiteshadow]

Has then been solved