Trouble with trouble codes

[8upZR1]

Can anyone tell me if I should be getting a trouble code if I unplug a sensor, say cam or crank, and then try to start the car? Does the motor need to run to register a trouble code? If I get no trouble codes does it mean my computer is shot? Is the ECU also responsible for trouble codes or is there a seperate computer for diagnostics? I would greatly appreciate anybody's input, thankyou.

[Jeffvette]

You have two seletions for codes. ECM and CCM. Depending upon the year of the car will make a dfference as well as to how much they integrate with one another.

Codes will be set with the car running.

Unplugging a crank sensor will not set a code from my memory. Makes it tough to trouble shoot.

What is the issue you are having?

[tccrab]

You have two seletions for codes. ECM and CCM. Depending upon the year of the car will make a dfference as well as to how much they integrate with one another.

Codes will be set with the car running.

Unplugging a crank sensor will not set a code from my memory. Makes it tough to trouble shoot.

What is the issue you are having?

Jeff:

He's got major troubles, here's a link to his other posts...
http://www.zr1netregistry.com/forum/showthread.php?t=1832

TomC
'90 ZR1 #792

[Tyler Townsley]

See my reply on your other post. I am going to Bloomington next Tues, if you can meet me at an I 75 exit I can lend the ISS tester to you for a few days as I will be comming back through on Monday of the next week.

Tyler

[8upZR1]

Trouble codes set only when running huh? That does make this infinitely more difficult.

I would greatly appreciate borrowing your ISS machine. If I haven't found a solution by the end of Sunday I would love to meet up with you. Thankyou for all your help.