View Single Post
  #16  
Old 07-16-2007, 10:44 AM
afmcorp's Avatar
afmcorp afmcorp is offline
Registered User
 
Join Date: Jan 2002
Location: NW Indiana LaPorte
Posts: 571
Quote:
Originally Posted by Rick76 View Post
The CIS-E control unit has diagnostics built into it.

For your year and model:

Ignition on, engine off - 70% = Federal version control unit, 85% = California version control unit.

Engine at idle - oscillating reading indicates no malfunctions in system, otherwise -

0% = CIS-E control unit receives no voltage or is defective.
10% = idle speed contact
20% = full load contact
30% = coolant temperature sensor
40% = Air flow sensor position indicator
50% = O2 sensor
60% = not used
70% = TD signal
80% = altitude correction capsule

are these numbers compatable with 87/88 420sel??

also looking at the ICV it appears to be nothing more than a 12v open/close solenoid valve. is this correct???

tks
much
craig
__________________
Thanks Much!
Craig

1972 350sl Red/Blk 117k
1988 420sel charcoal/Blk 140k
1987 420sel gold/tan 128k
See My Cars at:http://mysite.verizon.net/res0aytj/index.html

Pound it to fit then Paint it to match!

There is only First Place and Varying degrees of last!

Old age and deceit will overcome Youth and Enthusiasm every time!

Putting the square peg in the round hole is not hard... IF you do it fast enough!

Old enough to know better but stupid enough to do it anyway!
Reply With Quote