Upgraded my fuel injectors from 42lb to 72lb due to a little extra boost. I changed the injector constant in tunercat but the car will not start. Is there any other item i need to change. Need to get the car started so i can start tuning.

 

Are the new injectors of a lower impedance? If so are you using a driver for them?

 

No they are still high impedance.

 

Did you check to see if you blew a fuse? Check for +12V on the pink wire to each injector.

 

Checked it with noid tester and voltmeter. Spark plugs are wet. Checked ignition also and has spark. I am waiting for my new ee file from tunercat. My ee file does not have minimum injector pulse width on it (older ver).

 

is the 72lb rating @ 43.5psi?

 

yes

 

Found problem. Broken cam pin..

 

How'd that happen?

 

Dont know. Called compcams and they have not seen it. only has maybe 200 miles on it.