Where is the spark plug on a 1993 Toyota pickup?
Google 1993 toyota pickup service manual and it should be at or near the top. I’m assuming you have good plug wires, cap, rotor & plugs, and that you are experienced in checking spark. Check for power on B+ in the check connector when ignition is on.
What was the problem with the Toyota 22RE engine?
There was an internal bulletin for Toyota factory technicians back in the mid 80’s about a similar issue with 22RE engines. The issue was an internal programming problem with the ECU.
How can I tell if my 22RE engine is firing?
With the engine running pull a plug wire off at the DISTRIBUTOR CAP side one at a time. Start with the #1 plug wire and go around the cap clock wise to keep track. If the idle changes (drops) when you pull a plug wire, you can pretty much say that cylinder is firing.
What do you check when ignition is on in a Toyota?
Check for power on B+ in the check connector when ignition is on. That verifies EFI fuse, IG2 on ignition switch, ignition fuse and EFI relay. Check that the check engine light illuminates when ignition is on. That verifies that the ecu is receiving power, and is functioning at least enough to ground the CEL.
How does the igniter work on a Toyota 3vze?
The 3vze uses a different system, “ESA” (electronic spark advance), in which there are camshaft positions signals (G1 and G2) in addition to Ne, and those inputs connect directly to the ecu instead of the igniter. And the Ne reluctor (signal rotor) has many more teeth, giving a higher resolution crank position signal to the ecu.
When to replace the igniter in a Toyota?
But if your wires, wiring to ignition coil, coil itself and the dist signal generator, and the air gap of dist are within spec, then replace the igniter.
Where does the spark signal come from on a Toyota igniter?
The igniter receives the Ne (crankshaft position) signal from the distributor’s signal coil (sometimes called the “Hall Effect sensor”) which it uses to trigger spark during cranking and initial running. Ne is also passed through the igniter to the ecu, which uses it to determine base timing.