Having Problems with your stock boost gauge & dont want to replace it with a tacky after market one?
Well I came across this issue with my R34 GT-T 1998 Skyline 1 month after getting it shipped over from Japan.
The Boost Gauge started not working & then working intermittently…
Started really annoying me & I knew it was a sensor of some kind as the engine was running perfectly fine.
After some research I found the culprit.
Right next to the break master cylinder is a oval shaped black sensor that has a small vacum hose that feeds directly off the inlet manifold.
The hose & wiring to the sensor were fine so I disconnected the sensor & took it inside to my work bench.
Be careful when opening the sensor the clips can be broken really easily (be delicate)
I discovered that the solder on the 3 main joints was not transferring current well at all & sometimes didn’t at all.
I busted out my soldering station & used some fresh solder to re-flow (re-melt) the solder joints. Just for safety measures I also did this on all major sized solder joints.
After that I put it all back together & hooked it all back up.
its been 3 weeks now with out a single issue.
I had been having the same issue with my R34 for the last couple of years. I had taken it to two different mechanics but they couldn’t see any obvious issues, and I didn’t really want to replace the stock gauge just yet.
I just tried re-flowing the solder on the main three connections as you mentioned in the post, and it looks like the problem is fixed. The gauge is still working after a 30 minute drive. I can’t remember the last time this was the case.
Thanks a lot for posting this.
Thanks Sammit
from a R34 owner with the same issue just re-flowed the solder and tested its working now to go for a drive and give it a good test not as full on as your testing but making sure it goes to its respective locations on the gauge needed.
You need to get another R34 coupe {GT auto} and do a RB30DET tiwin cam 6 speed monster. Show what crazy Aussies come up with.