89+ 9000's w/ LH2.2 + DI/APC but no O2 [Archive] - SaabCentral Forums

: 89+ 9000's w/ LH2.2 + DI/APC but no O2


Ubipa
25th May 2002, 11:07 AM
Hi. This is the 1st time posting on this forum.

9000 2.0T, 9000 S 2.0T, 9000 SE 2.0T, 9000 Carlsson 2.0T, CD 2.0T, CDE 2.0T, CDS 2.0T.

From some links I've found, it appears that there are some European 9000's from 89+ that are running LH2.2 fuel injection w/ DI/APC but no Oxygen sensor. From the the LH2.2 pin codes, a DI/APC signal actually replaces the O2 signal position. The DI/APC judges enrichment and leaning based on preignition and knock, reducing fueling for preign and increasing fueling for knock. Is this true? Does anyone on this board have such a car? It amazes me because it kinda seems the fuel injection system bases it self on performance instead of conservation. If someone here does own such a car, how does it run on and off boost? Have you ever monitored the A/F to see the performance of the fuel injection system setup this way? Also could you tell me the X XXX XXX XXX part number of the LH2.2 ECU it uses?

Reincheck
27th May 2002, 04:18 PM
Hi,
I have 89" 9Kt DI/APC, with no o2 sensor(lambda)
IŽll check the numbers for the ECU.
IŽll let you know then.

Jani

Reincheck
27th May 2002, 04:18 PM
Hi,
I have 89" 9Kt DI/APC, with no o2 sensor(lambda)
IŽll check the numbers for the ECU.
IŽll let you know then.

Jani