1992 Toyota Pickup No power, Idles fine

1992 TOYOTA PICKUP
190,000 MILES • 4 CYL • 4WD • MANUAL
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CAPTIN_CAVEMAN
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I have no power at all to accelerate, it jerks and nearly stalls out even when starting to move at all, can only get truck to move about 15 mph if it will even move, engine idles fine. Has a slight miss. Things that I have done to correct this so far, and have failed are: Checked and adjusted TPS sensor, replaced defective airflow meter, replaced tempature sensor, replaced EGR valve, replaced intake manifold and all seals on both parts of intake, fuel pump replaced, new plugs and wires cap rotor and coil, cheked pick-up coil air gap and resistance, checked and traced all vaccume line for leaks, adjusted timing to 5 degrees BTDC and also adjusted valves. Could this be the ignighter, O2 sensor, fuel pressure regulator or ECU. Or could it be something else like the TPS sensor that has cheked out fine with a voltimeter and adjusted within the range of operation.
Jun 6, 2010 at 9:16 PM
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RASMATAZ
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Hi captin_caveman, Welcome to 2carpros and TY for the donation

Let me try to help-Okay did you jump TE-1 to E-1 in the check connector before you adjusted the timing to 5deg?

Try disconnecting the exhaust pipe to rule out restriction in the exhaust system.

Check the fuel pressure if its within specs with and without the fue pressure regulator
Jun 6, 2010 at 11:27 PM
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CAPTIN_CAVEMAN
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Yes, i did jump the connectors when I set the timing, and have just pulled the exhaust off and no restrictions, the only other thing that i have yet to do is the fuel pressure check, just to make sure, you do not think it is the ignighter, or the O2 sensor
Jun 7, 2010 at 11:20 AM
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RASMATAZ
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if the ignitor is gone it won't start at all, the oxygen sensor will only make it run rich

Recheck the airflow meter and throttle position sensor and check the fuel pressure with and without the fuel pressure regulator by removing the vacuum hose

You sure the clutch is not slipping?
Jun 7, 2010 at 12:06 PM
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