1997 Eclipse Spyder Running on 3 cylinders

[SwampDonkey69]

i just put an engine in my eclipse and when i start it everything is fine. it runs smoothly on all 4 cylinders, but after about 15 minutes of running one cylinder drops out. it has spark and it pulses so its not electrical. I thought it was an ejecter but i switched the one i thought was bad with a good one but it doesnt fix it. its the one closest to the start of the fuel rail. What could it be?

 

[GsXdSmKingGsX]

i just put an engine in my eclipse and when i start it everything is fine. it runs smoothly on all 4 cylinders, but after about 15 minutes of running one cylinder drops out. it has spark and it pulses so its not electrical. I thought it was an ejecter but i switched the one i thought was bad with a good one but it doesnt fix it. its the one closest to the start of the fuel rail. What could it be?

Post a video if you can my friend

 

[1997_GSX]

Hate to tell you this but this just happened to my buddy's spyder with a stock 7bolt, stock head bolts and head gasket with 150k miles spiking to 35+ psi and falling and holding at 27 psi at the track.

Did a compression test 180, 30, 180, 175. You might have a popped head gasket as I am hoping that is all that is wrong with my buddies car.

Edit: I see your non turbo, how many miles are on that engine?

 

[SwampDonkey69]

Hate to tell you this but this just happened to my buddy's spyder with a stock 7bolt, stock head bolts and head gasket with 150k miles spiking to 35+ psi and falling and holding at 27 psi at the track.

Did a compression test 180, 30, 180, 175. You might have a popped head gasket as I am hoping that is all that is wrong with my buddies car.

Edit: I see your non turbo, how many miles are on that engine?

it has less than 30,000 miles but if it is something serious with the engine i have a warrenty. i just have to pull it back out

 

[bigbird]

Do you have noid lights? they are led ligts that fit into your injector harness to check for injection signal from your PCM. you can also use a multimeter with a duty cycle or pulse width setting.



maybe this is you