[240sxspeed]

coolant tem sensor ok and check the wiring on the cas had the same problem b4 one of the pins on my cas was off and guess it was slighty pulling away when the motor was moving or sumthin and also i was reading a thread bout the temp sensors goin bad same symptoms try that it a 20 part u can get at autopartsstore 4 a na sr20 sentra 91 94 one more thing 255 walbros i changem every year its 80 bucks thats protects your 2000 dollar motor u know what i mean