Aftermarket gauge readings
 

Anyone know what these values should be? My car is pretty much stock except for a FMIC and Koyo Rad. I have several Defi gauges, just not sure what each should be reading.
For my Fuel Pressure, I get a reading of 39psi when I jump the fuel pump with GND, but at idle its at 34psi.
For my oil pressure: I teed off the Defi sensor with my stock sending unit. Stock reading is pegged and the Defi oil gauge is buzzing.
For A/F: at cold startup, my reading is at 13.5, but when the engine warms up 90c, its starts to lean out, bouncing from 14-17, sometimes sitting around 17
And for boost, well not sure how to convert kPa to psi
Here are some post:

At cold startup
http://www.youtube.com/watch?v=jzC0dN66iCI

enging warming up about 5mins in
http://www.youtube.com/watch?v=YcEP1lESIiM

[QUOTE=silvercvic;10335517]Anyone know what these values should be? My car is pretty much stock except for a FMIC and Koyo Rad. I have several Defi gauges, just not sure what each should be reading.

For my Fuel Pressure, I get a reading of 39psi when I jump the fuel pump with GND, but at idle its at 34psi. Sounds about right

For my oil pressure: I teed off the Defi sensor with my stock sending unit. Stock reading is pegged and the Defi oil gauge is buzzing. That is no good you need to get the pressure sensor that is susposed to work with the defi gauge
For A/F: at cold startup, my reading is at 13.5, but when the engine warms up 90c, its starts to lean out, bouncing from 14-17, sometimes sitting around 17

And for boost, well not sure how to convert kPa to psi Use the google.
Here are some post:




John

[QUOTE=RENESISFD;10335541]Thanks John, but for my oil pressure I did use both sending unit that I teed off from the engine. The big stock unit and the defi sensor is attached to my motor. As for the conversion, its nice to be able to know right away rather have to convert it. But my question is, what should the value be at idle and light throttle, I can do the conversion, but what is ideal

your boost gauge is not showing the correct values, it should not be positive pressure at idle.
Id guess that your oil pressure gauge is buzzing because your oil pressure is below its
warning threshold,
try revving it and see if the pressure goes up and the buzzing stops.

For boost that does value mean the same if its in Kpa rather than psi. I should of bought the imperical readings rather than metric. Need to sell this one and get the correct one.

As for the oil pressure, when I do rev, the defi gauge does stops buzzing, but stock gauge is pegged over the 120

i think 17 a/f is super lean for idle(not even sure the car can idle at all that lean), mine is 13s to high 14s warmed up. during warm up its a bit richer like high 11s-12s. where exactly is the sensor located ? maybe gone bad?

boost should not even be at 0 when the car is started and idling.. the car should be in vacuum unless under boost. you could possible have a leak, in 1 or more places, what is your boost pattern?

i have no clue about the oil since i dont know and have no oil gauge except stock

The value will not really matter, just looking at where the zero is, is usually the division between boost and vacumn.
i think your stock oil pressure gauge is definitely malfunctioning, what does the defi go to when it is revved to 3-4000?

On the defi, I think it hits about 3.xx..peaks about 4.0. What does each value represent? Stock gauge peak is 120, but Defi is a totally different number, do you think defi 1.2 is equivalent to stock's 120? Also do you think the stock is malfunctioning at the sending unit or the gauge iteself?

Also should my idle be that high at cold startup 1200rpm?

I may reroute the connector on the A/F, the previous owner had it tapped to a brown wire to the o2 sensor mounted behind the UIM, I know most member tap into the wire on the ECU. I followed the FSM to where the o2 sensor was in there and since the wire was already there, I hooked up to that wire.

As for boost, I just put everything back together after installing cleaned out injectors. I re-zipped all the hoses back and replaced a couple of silicone hoses that cracked..I'm hoping I put everything back together. The only hard pipe I did not cap nor put a hose on is located in front of the UIM near the coolant hoses/fill neck/left side below the middle vacuum chamber. Here is a pic below:

http://img828.imageshack.us/img828/8...uumcircled.jpg

For your oil pressure and boost gauge the readings are in "bar". Multiply by 14.7 for the imperical number.

Something is definitely wrong with the vacuum line of your boost gauge. As most have already stated, you should be down in the kPa area under idle and light load.

Oil pressure at idle warm up for me on the stock gauge is around 60 psi which should be just over 4 bar. Warm it should be closer to 40 psi which is around 3 bar. Mind you this is just per my stock gauge on my personal car. Either way something is definitely wrong with the pressure source for both your stock and Defi sensors. They are reading it totally opposite directions.

Just to clarify:

He mentioned that his boost gauge is in kpa and 100kpa = 1 bar = 14.7 psi.

ok, so if according to the video and the way my car acts at idle, its hovering at 0, maybe slightly above. So with a some throttle it hits about 1.0 - 1.3. With the equation above, its hitting about 14.7 - 18.8psi. Does that seem right?

I am wondering with the oil pressure reading, before I went ahead and pulled the injectors out, I had the Defi sending unit attached to the motor along, the stock sending unit I had taken off. When that was the only one there, the reading was at 2.0..no buzzing no warnings! Last week I decided to tee off the Defi and stock unit since the motor was apart and that is when the reading was down a notch. I am not sure if this is due to the fact I had fixed the irregular idling, or something else. Here is the video from a couple of weeks ago:

http://www.youtube.com/watch?v=8NVdA...layer_embedded

Also I forgot to mention, the gauges are new, but had been sitting installed in my car for about 5yrs now

Here is another video from a couple weeks back, engine was a cold start

http://www.youtube.com/watch?v=5jvJdXB1pFI

There is something wrong with the boost gauge, it should in no way be in boost at idle, there just isnt the load/exhaust flow necessary to spool the turbos

I've got my boost gauge hosed teed off the FPR, according to the Defi manual, is that the correct way of install or do you all have it plugged directly to the UIM?