gyroplane

Adventure and Roo, All good thoughts, thanks. I think I will do the plugs and plug wires; not sure how to check the fuel pressure regulator. It seems to be a simple ( maybe cheap ? ) devise. I will also empty the fuel and try to purge the fuel rails as well. The inexpensive things first. Tom in MN

Fairtax, I am using the engine control computer; not sure what the MAP or MAF are ? The temp. is from a gauge. When we had the code reader hooked up and had the smart phone app going, the gauge agreed with the code reader values. ?? Thanks Tom

Roo & Fairtax, Thanks for your suggestions ! I have not modified much after buying it , in 2002, from a Forester roll - over wreck. Same fuel injectors; dual fuel pumps ( for a 1980's vintage Ford F150 pick - up ). One O2 sensor, not sure which. I am getting a lot of good input, both here and the Rotary Wing forum. I will investigate all; but the fact that it runs well from a cold start to about 140 degrees is still curious. Will report ! Tom in MN

First timer ! I have a 2002 2.5 FI on my gyroplane. It has purred for 200 hrs over 12 years, It sat unused over the winter ( same for the [past 12 years ). On my first long taxi, 10 days ago, the engine coughed and sputtered. It ran smoothly from a cold start until about 150 degrees water temp. The it had trouble between 1,500 and 2,000 RPM. A friend had a code reader and we thought the problem was the Throttle Position Sensor. we installed the new TPS yesterday; no help, no fix. We pulled off the Idle Air Control ( it looked fine but not sure what to look for. I am running with 2 fuel pumps; one is full-time, the other is a switchable aux. It seemed to run a bit better with both pumps ; certainly not smooth though. Anyone had a similar situation ? Hope this is a proper area of the Forum. I tried in Engines, but it said I could not start a new topic. Thanks in advance for any help. Tom T. in MN.