1993 Loyale 1.8 SPFI / MT

 

I recently replaced all the gaskets and seals in the engine, but am having a drivability problem. The car starts easily and idles smooth, but when I try to drive it, it "bucks-like a bronco" between 1200 - 2000 RPM. If I "lead-foot" it -- wind it out to about 2500 and slowly ease the clutch, it's ok. I have replaced the plugs, wires, cap, rotor, and coil. I have tried adjusting the timing between 20 degrees BTDC and 24 degrees BTDC.

Additional clue -- I am getting an intermittant check engine light, with an ECU Code 51 -- neutral switch. Could this really be the cause? If so, where is this neutral switch located and where can I find a replacement? All I've seen from my local parts stores are for the automatic transaxels.

 

Thanks!

The neutral switch will not cause your problem.

 

Start looking at your fuel system. Run a D-Check and see if you get any codes that way. You could have a bad TPS or maybe several things wrong.

 

GD