Guys replacing the alternator may have knocked a vacuum line loose. Look around the alternator and intake manifold for a loose vacuum line.
Do It Yourself Diagnosis and Repair
SOURCE: 1999 toyota tacoma Sr5 won't start
Check for fuel pressure when starting. Fuel pumps have a check valve in them that keep fuel in the rail at the injectors. If the check valve fails, the pump has to pump fuel all of the way up to the engine. Same thing with hot no-restarts. Fuel pump.
SOURCE: 99 tacoma
Still need the codes.
Injectors can go "bad" in a couple of different ways; all they are is an electromagneticaly controlled nozzle. When the ECU "fires" the injector, it pulses a ground circuit for 4-8 milliseconds, the electromagnet powers up, the valve at the bottom of the injector opens, and the fuel shoots out, under pressure. The wire can be bad/chafed/corodded/ The electromagnet may be weak. The nozzle may be stuck. Lots of things. But, to put in an injector for a number 4 cylinder misfire (p-0304 code) would be one of the last things that I would do.
SOURCE: 2005 toyota corolla light comes on then goes off for a few days e
i had the same codes and the same "bucking" on my 05 Corrolla. I had my mechanic replace the solenoid (not cheap) and the light stayed on & the codes were the same. He thought my computer needed to be reflashed after the fix. I took it to Toyota where they ended up switching out the computer...free of charge.
Apparently 05 Corrollas have a "bulletin" on the faulty computers. they cause the check engine lights to light up & give those readings. It is not a recall because it is not a safety issue.
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