Spyder 97 GST Spyder P0300 and Jumpy Tachometer.

[ZubUchiha]

Hey y’all, I Just got a 97 Eclipse Spyder GST and it has a P0300 code. I changed the spark plugs and the check engine didn’t come on but halfway of driving it back home, check engine came back on and it started misfiring.

When I start to accelerate it would feel as if the clutch was slipping, and the entire car would start to rumble and shake hard, but this would only happen sometimes. Another problem is that when I accelerate the rpms fluctuate up and down like it’s lagging as it’s going up, but when it’s in neutral, it goes up and down smoothly.

The temperature gauge would also start to go up slowly past the halfway mark.

Another question I have is when the car is idling in neutral and not moving, the rpm’s will drop below the normal range the car will vibrate as if it’s about to stall, any reason why this would be? My reader only shows this code and none other. Any help would be appreciated.

 

[ZubUchiha]

Under the intake manifold and attached to the transmission bolt that connects the transmission to the engine block there is a cable, from the transmission bolt, there is suppose to be a wire that is suppose to go to the negative battery terminal.

Your car is missing that cable

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Hello,

You're gonna need to show me a pic of the wire from your car because I am not sure what wire that is supposed to be. But I assure you, there is a ground there. I am not sure why you cannot see it. The negative terminal on the battery has two wires connected to it.