87runnerAK

i have an 87 4 runner that runs decent but every now and then while driving it spudders and the check engine light comes on. sometimes while sitting at red lights or even sometimes when i start it, it doesnt want to stay running and takes a while to get going...kinda seems like a fuel problem but im not 2 positive..any inputs would be appriciated, thanks.

Moebass

you may want to look for vacuum leaks, idle air control may be dirty, your mass air flow meter may be having an issue. i know mine did, the truck would barely move sometimes. the only way to really test your fuel pump is to mount a gauge to monitor fuel pressure while your engine runs. also check the voltage of your battery. engines run bad when the voltage gets real low, 10.5 volts & under is bad. 13.5 when running is normal.these are just general suggestions because viewing your post does not tell us mileage, engine, last tune-up. just try simple things to see if that helps the problem. look at your air filter and work your way to the motor. maybe also a clogged cat. convertor. the motor has a hard time hoffing out the exhaust at low rpms and it runs better with more pressure and heat. a glowing cat after driving ten miles is a great indicator. hope this helps. any more details would help.

toyota4x4907

well you're saying you're getting a CEL light.....have you checked so see what the stored code is? That would be helpful to both you and us Go check the code(s)!!!!!!!!