97 Civic Sputters (video)

[existanzcivicb20]

Car 1997 Civic with a B18B with a P75 OBD2 ECU. engine is stock but I cant get it to run right. Please see the video I posted onto youtube. Also the sputtering also happens when going down the road and trying to cruse at a steady speed. at high RPMs (5000+) it does cut out and revs normal and it idles normally. I cant find a vacuum leak and the fuel filter is new fuel pressure is at 48psi, timing is spot on, spark plugs and wires are good, what else can i check?

The CEL code is P0117 ECT circuit voltage low. And I also can not figure out why i get that code. I have 5 volts to the sensor and good ground. Continuity good from plug to ECU (connector D2)

 

[daperez13]

Has the car ever ran out of gas or leaned out?

Remove the catalytic converter and look through it to see if it's still intact. Use a flashlight afterwards and look at the honeycomb cells to see if they're not melted or otherwise deformed.

 

[nd4sped]

Disconnect the ECT connector and see if that resolves the issue. Also I believe you are supposed to be getting battery voltage at that connection. Check the HSM to verify voltage and also there is a set by step diagnostic that can assist you with testing the circuit and switch in the HSM. (Honda Service Manual)

 

[existanzcivicb20]

No cat on the car, never ran out of gas or leaned out. Ill try disconnecting the ECT