Acceleration Problem
#1
Acceleration Problem
I have a 94 Toyota Pickup with the 22re engine. I had the engine completely rebuilt about 2500 miles ago and this problem has been present since the rebuild. It seems when I push the throttle it should have more power. Even if I push the throttle to the floor vs. half way there is no change in the acceleration. Some days I can tell a difference as if it is working like it should but this is rare. I feel a big difference, for the worse, when I turn my AC on. I feel like its a fuel problem. I have replaced the fuel pump because my old one went out. The problem was there before and after I replaced the fuel pump. I replaced the AFM not long before the rebuild. Also when I take off my gas cap to put fuel in, there is always a lot of pressure built up in the tank. Not sure if this is normal. What should I check?
#2
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Do you have a check engine light? Have you checked for any stored codes? http://personal.utulsa.edu/~nathan-b...26diagnosi.pdf This should be your first check
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... I feel like its a fuel problem. I have replaced the fuel pump because my old one went out. The problem was there before and after I replaced the fuel pump. ...Also when I take off my gas cap to put fuel in, there is always a lot of pressure built up in the tank. Not sure if this is normal. What should I check?
2. Pressure is normal. (Greater on warmer days; fill up early in the morning and you'll get more gas for your dollar -- even liquid gasoline expands as it gets warm!) The vent in the cap allows air in (as you drain the tank) but keeps smog-causing fumes in.
3. Check for stored codes always. Check the timing. (A timing light is $20; how much did you pay to have it rebuilt?)
#6
The fuel filter was changed with the rebuild. The rebuild cost around $2000 parts and all. The guy who did the rebuild works on foreign cars only and has an outstanding reputation. Labor warranty of 6 months. He mentioned the hesitation in the throttle before I picked it up and its not engine related. He also helped diagnose the fuel pump issue when it was going out. I do smell strong gas fumes when I get out after a drive. I will run the diagnostics this evening to check for codes.
#7
I just ran the diagnostic test. Paperclip between E1 and TE1. Turned ignition to ON. It blinked constantly, 2 blinks per second. From what I've read that means Normal system operation. No codes are stored. Any other ideas?
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#8
Check your engine timing.
Set the engine to TDC. Make sure the rotor points to #1 on the dist. Also pull the valve cover and make sure the timing mark on the cam gear lines up where it should.
My bet is you are 1 tooth out on your timing chain...
Set the engine to TDC. Make sure the rotor points to #1 on the dist. Also pull the valve cover and make sure the timing mark on the cam gear lines up where it should.
My bet is you are 1 tooth out on your timing chain...
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