'98 SE starts rich and stalls when it feels like it..help!
Here'* a little background....at 98K the engine blew, spun the bearings. Replaced the motor, spun the bearings in 20 miles! Replaced the engine again, spun the bearings again in 20 miles! Third engine.....found out that the oil pressure bypassed the first time that the engine went to high rpm, but pressure did not come back up when you let off the gas....replaced the oil filter mount where I'm told there is a check valve. We put probably 2000 miles on this new engine that has 54K on it. First problem.....check engine light...replaced something in the emmission system..installing mechanic did it, I don't know exactly what it was. Second problem...stalls at will, it may run for 2 weeks and then stall twice in the same day. When it stalls there is no warning, it'* just like the key was shut off. Pop it in neutral and it restarts every time. Third problem...every time you start it, it runs rich for about 10 seconds. There was a code once...knock sensor. I replaced the knock sensor and later found that there was a plug wire pinched between a plug and the manifold, it had burnt thru.
Any suggestions on why the motor stalls? Any suggestion why the engine runs rich on startup?
Give me a small block and I'm right at home. These newer engines are somewhat a mystery to me.
Thanks for you help!