2G I can’t figure out the problem with my 97 eclipse I’ve tried everything

[Eclipse gs spyder]

I have a 97 eclipse gs spider when I start the car it run great but as soon as you press the gas for the remainder of the time the car is running it runs extremely rich and every sensor in the car like dies so to speak like the coolant temperature sensor reads -40 mass airflow sensor doesn’t read both 02 sensor don’t read anything the tps reads 100% im very confused I’ve replaced the coolant temp sensor the map sensor both 02 sensors tps sensors the tps sensor I’ve asked multiple people brought it to multiple people and I can’t figure it out any ideas?

 

[1990TSIAWDTALON]

Check the GROUNDS for the car. Make sure you have one going to the engine, the firewall, the fender etc. Most of the sensors run on a "sensor ground" at the ECU and 5 volts out from it. It could be as simple as a wire not making a connection at the computer or a "gremlin" chewed a wire into two. A lot of folks over look good grounds to everything is why I brought it up.

 

[Eclipse gs spyder]

Thank you will definitely check that

Do you know what pin it is on the ecu?

 

[pauleyman]

Have you inspected ecu for damage?

 

[1990TSIAWDTALON]

Sensor ground is pin 92.
I am a 1g guy, but this pin out diagram should be helpful

2G - 2g Turbo ECU Pinout w/ wire colors

This article shows the wire colors for every pin on a 2g turbo ecu.See You must be registered to see element. for how to identify ECU pin numbers.You must be registered to see element. You must be registered to see element. You must be registered to see element. You must be...

www.dsmtuners.com

 

[Eclipse gs spyder]

Thank you so much could not find that anywhere!

 

[ceasarmo]

Check this, seems exactly what you're describing

blownsensorground [ECMTuning - wiki]

www.ecmtuning.com