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ECMlink no oil pressure and coolant gauge pinned on H

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1G Eclipse94928

Proven Member
656
7
Apr 3, 2013
Rohnert Park, California
1). Any boost, vac, or exhaust leaks? slight leak on the downpipe to o2 housing
Boost leak tested 5psi above your max boost with no leaks? yes

2). Verified mechanical timing? yes

3). Verified base timing? yes

4). Ignition system
COP or Stock Coil: stock
Wire brand and Age: 3 years (plugs 6months)
Spark Plug brand, type and Gap: ngk7

5). Motor health (Compression Test)
Cylinder 1: dont remember
Cylinder 2:
Cylinder 3:
Cylinder 4:

6). Performed basic throttle body adjustments?
Idle Switch: all
Throttle Cable: good
TPS: here
BISS: ..

7). Compression ratio
stock
8). Any known bad sensors or brittle wiring?
no
9). Any DTC/CEL codes?
no
10). Electrical system
Car off (not running): 12.7
Car running: 13.x

11). Base fuel pressure and injector values
Base Fuel Pressure: 40psi
Injector Size (cc/min): 950cc

12). Properly calibrated and configured wideband sensor
Sensor Brand: aem
Calibration Date:

13). Type of fuel
Type: 91 pump
Percent of Ethanol: "up to 10"

14). Watched ECMlink how-to videos? yes



Ecm logs 200 degree coolant temps (normal rising under boost to 206 then 196-200 cruising), and i'm pretty sure there is oil pressure.
voltage drop under boost also, 13.7-12.7

What could cause those gauges to be so weird, all the other gauges work..
 
Last edited:
Have you checked the wiring? The oil pressure sender connector has a tendency to fall off. Its right under the alternator single wire. Coolant gauge wire is on the water neck Another single wire and usually becomes brittle and breaks off.
 
Have you checked the wiring? The oil pressure sender connector has a tendency to fall off. Its right under the alternator single wire. Coolant gauge wire is on the water neck . Another single wire and usually becomes brittle and breaks off.
They are connected, and I am getting normal coolant readings from DSMLink.

More info: Gauges used to work, Anyone know how I can fix this? I pulled the dash which caused this.
 
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