Hello!
Firstly thanks for clicking on this thread - I love my cruiser and use it every day for work and fun, but its had a problem with it ever since I have owned it.
1fz-fe - 4.5 24v petrol 1996 (OBD1)
First start up and pull away its perfect, pulls lovely drives smooth. Within a few minutes it starts to struggle below 2.5k revs. Loss of power and you have to floor it back to above 2.5revs to get it to run nicely. Then when travelling at speed it feels like its being retarded, slight pull back every minute or so almost like you are letting off the gas, this only happens between 2 and 3k revs. After a few miles this stops and it will drive lovely all day, idles fine, low revs fine....
EXCEPT - when you stop the engine and start again, you almost can't pull away, it really struggles and will stall if you leave it idle for more than a few seconds. Once you pump the gas and get it to rev above 2.5k it then corrects itself and will run fine again until you next stop it
Its had a -
new head cylinder this year (Gasket gone)
OEM knock sensors replaced
OEM O2 Sensor (Only got 1 pre CAT)
PCV done
Filter change
MAF cleaned
All exhaust joints have been checked for leaks
I am pretty sure it is electrical and am now thinking could it be and faulty wire from either knock sensors or the O2 sensor??
Other than that I am a loss...... And not keen to throw more money at it without a good reason.....
Any help would be much appreciated
Silas
Firstly thanks for clicking on this thread - I love my cruiser and use it every day for work and fun, but its had a problem with it ever since I have owned it.
1fz-fe - 4.5 24v petrol 1996 (OBD1)
First start up and pull away its perfect, pulls lovely drives smooth. Within a few minutes it starts to struggle below 2.5k revs. Loss of power and you have to floor it back to above 2.5revs to get it to run nicely. Then when travelling at speed it feels like its being retarded, slight pull back every minute or so almost like you are letting off the gas, this only happens between 2 and 3k revs. After a few miles this stops and it will drive lovely all day, idles fine, low revs fine....
EXCEPT - when you stop the engine and start again, you almost can't pull away, it really struggles and will stall if you leave it idle for more than a few seconds. Once you pump the gas and get it to rev above 2.5k it then corrects itself and will run fine again until you next stop it
Its had a -
new head cylinder this year (Gasket gone)
OEM knock sensors replaced
OEM O2 Sensor (Only got 1 pre CAT)
PCV done
Filter change
MAF cleaned
All exhaust joints have been checked for leaks
I am pretty sure it is electrical and am now thinking could it be and faulty wire from either knock sensors or the O2 sensor??
Other than that I am a loss...... And not keen to throw more money at it without a good reason.....
Any help would be much appreciated
Silas