[5150coupe]

To answer the previous questions: my timing is at 14, the car did run ok after I initially swapped the tps, and I recently swapped it again as described, didn’t check the voltage since my meter isn’t working right now, haven’t tried pulling codes which is probably the best place to start but the engine was swapped and I’m not sure if the diagnostic will work properly, and the o2 sensors came with the car about six months ago. This is a 1989 lx coupe.

Update with ect: maybe I’m using the wrong terminology, but I believe it is the ect that gives a reading to the computer that in turn tells the injectors to run rich when the motor is cold and lean when the motor is hot, but maybe it is called something else. Anyway, I installed the sensor that was missing directly into the port right above the thermostat in the manifold and the car seems to run a lot better. For the first time in a few weeks the car didn’t seem to run lean in the same places as before. I only had an issue once about halfway to work where I lost a little power and it popped a little, but nothing compared to how it was before. No issues on the return trip home so I am hoping this will fix the issue. The ect is important since it tells the computer when the engine is cold and then warm. The computer compiles information from the ect and other sensors to manage the fuel properly. So if the ect isn’t connected the car can run to lean in a certain period of time and rpm range after starting the car and before it fully warms up. After closer monitering I did realize the issue was happening during warm up and in 2 and 3 gears mostly which is a cruising speed. I’m certainly not an expert though, and am basing this information on other web sites rather than experience, but if the issue I am having does go away then this could prove to be useful information to others.