It's 928 Trivia Day!
02-12-2008, 11:22 PM
#121
Inventor
Rennlist Member
Rennlist Member
02-12-2008, 11:32 PM
#122
Inventor
Rennlist Member
Rennlist Member
02-12-2008, 11:41 PM
#123
Inventor
Rennlist Member
Rennlist Member
When did Porsche add the exhaust temp sensors to the 928?
In 1989
What exhaust ports did they monitor?
4 and 8
When and why did they switch to different ports?
They switched to ports 3 and 7 in 1990 due to temperature variations of 4 and 8 falsely activating the system (3 and 7 were thought to fluctuate less in temp).
In 1989
What exhaust ports did they monitor?
4 and 8
When and why did they switch to different ports?
They switched to ports 3 and 7 in 1990 due to temperature variations of 4 and 8 falsely activating the system (3 and 7 were thought to fluctuate less in temp).
To shut off one bank of fuel injectors, in case of ignition failure, so that the cats don't catch fire.
What are the ports used for in some ROW, non-cat cars?
Air injection to all eight exhaust ports.
02-13-2008, 12:01 AM
#124
Inventor
Rennlist Member
Rennlist Member
On 85-86 32Vs, what does terminal 'A' do on the A-B-C diagnostic connector at the engine?
Lamda (O2 sensor) range finder.
Is it mentioned in the WSM?
No.
Lamda (O2 sensor) range finder.
Is it mentioned in the WSM?
No.
02-13-2008, 10:15 AM
#127
Sharkaholic
Lifetime Rennlist
Member
Lifetime Rennlist
Member
I'll take that bet!! 
Having pulled that one and inspected it, I found it to be a quite solid casting, one piece...
Because I remember your post long ago on the PacNW list about pulling the hood and standing on your head to fix yours, so I thought perhaps I had better check all of mine. Good to
go...
Having pulled that one and inspected it, I found it to be a quite solid casting, one piece...
Because I remember your post long ago on the PacNW list about pulling the hood and standing on your head to fix yours, so I thought perhaps I had better check all of mine. Good to
go...
