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Discussion Starter · #1 ·
Hey peeps, this has baffled me...

The car is running a apexi fc and avcr, the boost is controlled through the avcr (so no oem solenoid). The oem boost guage has randomly stopped working, but the oil temp and power distribution still work...

Any ideas?

Where does the oem guage get its feed as it appears its electronic..?
 

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Hey peeps, this has baffled me...

The car is running a apexi fc and avcr, the boost is controlled through the avcr (so no oem solenoid). The oem boost guage has randomly stopped working, but the oil temp and power distribution still work...

Any ideas?

Where does the oem guage get its feed as it appears its electronic..?
It gets it's electrical signal from a small MAP sensor style box on the drivers side of the firewall, there is a vacuum hose the feeds from under the plenum
 

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there is a vacuum hose the feeds from under the plenum
... which over time can crack, either at the plenum end or at the sensor end where it is stretched over the connection point. I had to replace mine a couple of years back.
 

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Discussion Starter · #4 ·
Cheers gents, i think a cracked pipe is the problem as ive just noticed its been blocked off by RK when the engine was rebuilt
 
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