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TCS/ETS & Throttle Body
Posted by David Prantl (more from David Prantl) on Sun, 6 Jan 2002 22:37:58
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00 

>  At various times different Saab technicians at different  shops would use 
>Tech-II to clear out the error codes,  citing anything from corroded wiring 
>to bad O2 sensor.

There's no fault code specifically for corroded wiring.  What should be done 
when a component-related fault code is set is a careful examination and 
cleaning (or possibly contact-pin replacement) at the throttle body 
connector (under throttle body), the pedal potentiometer connector (above 
the gas pedal), the ETS brain connector (under the driver's seat) and the 
ABS/TC brain connector (rear side of the battery tray).

An O2 sensor fault code is set in the Trionic (engine management system) 
whenever a throttle body (or related wiring) problem causes limp-home mode 
to kick in.  So, your O2 sensor is most likely OK.

If a bad component is suspected (e.g. pedal sensor or throttle body), there 
are some simple tests that can be done quickly for confirmation.

Replacing the safety valve is not necessary unless it is confirmed that this 
valve is faulty.  Again, it is a very simple solenoid-type device which can 
be tested very easily with proper use of the Tech-II.

It sounds like the SAAB technicians that you have visited mostly know what 
they're doing, and since throttle body malfunctions are relatively common on 
the affected 9000T cars ('92-'95), this is most likely a good diagnosis.

Now on to the cost.  CAD1900 struck me as an unreasonably high figure.  The 
current exchange rate is 1.6 CAD/USD, so this would be nearly USD1200.  
Consider the following when deciding whether or not this is a good deal:

Throttle body part number:  88 22 348.
List price:  USD575.
Labor time to replace:  About 1 hour (no special tools required).
Labor time and Tech-II time to calibrate the system:  Not more than 30 
minutes.

Note the following:

The service manual says that the calibration procedure must be performed 
with the Tech-II immediately after the new throttle body is installed.  
Starting the car without calibrating can cause permanent damage to the new 
throttle body.

Kachina Cadillac advertises in the NINES magazine, and offers substantial 
discounts on original SAAB parts to the SAAB community (usually about 25% 
off list).  Their number is 800-955-1205, and the guy I normally order from 
is Mike Lewis.  They should not have a problem shipping to Canada, and if 
they don't have the throttle body in stock, they will definitely be able to 
get it from one of the USA distribution centers (PA or CA) in approximately 
three days.  This is not something that must be special-ordered from Sweden.

Best of luck.

David Prantl
david_prantlno39sdcx6spamx782hotmail.com
'84 900S, 5M, 210kMi, RIP as of 2/98
'89 900, 3A, 116kMi, restored and SOLD on 3/24/01
'86 9000T, 5M, 192kMi
'88 9000S, 5M, 142kMi
'90 9000S, 4A, 136kMi
'93 9000CSET, 5M, 74kMi
'97 9000CSET, 5M, 60kMi
'68 97 Sonett V4, 4M, 76kMi, #000467

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