Need Help with Engine Lights Odd Problem

[jsmith811]

Problem: 4runner has ran great (only driven it a few hundred miles since purchase), randomly today it doesn't start, it cranked continuously as if it were out of gas. I turned the ignition completely off and back on at least 5 times, finally it was like something reset and it started normally, but then 3 Lights were on, Engine light and two vsc lights on lower left side of instrument panel. I drove it 2 miles, shut off and restarted and now no engine lights ??? I had never heard of engine lights re-setting themselves ? I was not aware that was possible? When I inspected I noticed a vacuum line appears to be missing, but I'm not sure... See Photo below... I also ran a scan and got error codes listed below, but this was after the engine light went out ?? very confusing to me.

Vehicle History
2001 4runner only 94,000 Miles, new to me, all maintenance appears to have been done at Dealership. according to paperwork its had a two new catalytic converters, plug wires, timing belt, water pump & charcoal canister., also seen a document were previous owner had some issues with vsc light.. I read something online somewhere about someone calibrating something to fix a similar issue but can't find it...


Is there suppost to be a vacuum line here, the tubing is capped off on right and open on left, but I have no idea where it originally went??

 

[jsmith811]

These seem to be similar to my problem, but one mentions 02 & up, mine is 01.

4Runner cranks but won't start - YotaTech Forums

Accelerator Pedal Position Sensor & Throttle Control Motor Don't Turn Together? - TTORA Forum
**********************************************************************
This thread talks about disabling the Drive by Wire system which I don't full understand yet...
http://www.toyota-4runner.org/3rd-gen-t4rs/45678-2001-2002-drive-wire.html

Recalibrate VSC System: Not sure this is relate to my problem...
http://mike-thomson.com/blog/?p=1143

Cleaning Throttle Body: I'm sure I could start here and clean everything...
http://mike-thomson.com/blog/?p=1178


Anyone have any input ? not sure what to look at here ? Throttle Position sensor or what.

 

[kball]

01-02 are drive by wire. TPS is not replaceable. You'd have to get a whole new throttle body. I'd start by cleaning the throttle body if it looks dirty at all. Your vacuum lines are different than my 96 so I have no idea about that. Although that capped off one is probably supposed to be that way.

 

[jsmith811]

Engine Lights

Any suggestions, or can anyone tell me if its normal for engine lights to come on, along with two vsc lights, then go off on their own, without a reset ?? Is that a sign of something going out ??

 

[kball]

It's normal on 01-02's when the CEL comes on the VSC lights also lite up. Also normal for CEL to go off after a while as it cycles through it's checks. The code is still stored and the problem is still there so the lights will eventually come back on.