no boost gauge
01-18-2002, 12:33 AM
#2
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Hi David , Is the rest of the computer display working or is it only the boost indication that is inop. ? Mark's 993 web page
01-18-2002, 12:43 AM
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No, just the boost gauge all else works. BUT yesterday the Check engien light came on, after a full throttle 1st gear, I disconnected the battery and it went away (euro spec car no OBDII), Any connection?
01-18-2002, 01:18 AM
#6
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I think that rules out the display itself. There is a pressure sensor in the intake manifold that provides the boost signal. It is possible that there is a loose connection. The sensor has a pretty small passage to the manifold and it may be plugged, which would kill your reading. I think these will cause the car to go into 'limp mode' where you will be limited to fairly low boost. Do you still have full power or are you down ~100 hp?
I would guess it is related to the check engine light - hopefully it was a solid light, not flashing (flashing check engine indicates a major problem and the car should be taken for service immediately). The non-major faults have to repeat 3 times (I think) before the check engine light goes on.
I would check the wiring in the area of the intake manifold. In any event, you should get the car to a service center to read the codes for the fault.
I would guess it is related to the check engine light - hopefully it was a solid light, not flashing (flashing check engine indicates a major problem and the car should be taken for service immediately). The non-major faults have to repeat 3 times (I think) before the check engine light goes on.
I would check the wiring in the area of the intake manifold. In any event, you should get the car to a service center to read the codes for the fault.