- Joined
- Jun 1, 2010
- Messages
- 31
- Points
- 3,101
- Vehicle Year
- 1994
- Transmission
- Manual
ok so I just got done with an engine swap on my 94 ranger and I have had a check engine light coming on and off since i got it going so I took it to auto zone got the codes and it read that there was a lean fuel mixture and a low running temperature. they tell me the lean fuel mixture could be a vaccum leak but I have looked and there is nothing obvious and i know that there is an exhaust leak both in front and behind the cat but after the O2 sensor. could the lean fuel mixture be caused by the exhaust leak? and start with fixing that or should I start by looking for less obvious vaccum leaks like at the intake manifold? any suggestions?
