Loss of power durring acceleration

mystique

#1

95 mercury mystique 2L

i had recently posted about a problem that i though was with the CKP after checking the voltage and resistance readings before and after the slpiiced connector i found that be ok, i found a vaccum hose that has been blown off, after reconnectig it the engine no longer stalls out when comming to idle. Cleaned out the IAC and took it for a test drive. there is very low acceleration, sputtering, especially up hill, i replaced the plugs wires and fuel filter about 1300 miles ago after buying the car. not realy sure where to go next. would a diagnostic tool be helpful at all if there is no check engine light on? any information at al on where to go next outside of taking it to someone (which i can not afford) would be helpful, thank you


#2

Have a shop do a manifold vacuum test,this will confirm or eliminate the possibility of a exaust (or cat) restriction. I you want to do it your self and can get a gague I will re-post instructions (two techniques were posted yesterday)

Some how you must get a under load fuel pressure reading to eliminate the potential low fuel pressure possibility.


#3

Have you disconnected the battery. If so, how did the engine run right after reconnecting. If that reboot worked for awhile, I might suspect the engine computer. If I wanted to just change parts, and I do usually want to, I would change the throttle position sensor. After that didn’t work I would have to get the codes read. The other way around is better.