Building a 88 Toyota reg cab 22re sas 63 inch springs starts sometimes won't stay running replaced fuel pump relay the pump it self filter igniter plugs first Toyota I'm stumped

 

"When" won't it stay running? Does it start, and then die in about 5-15 seconds? Is the induction (VAF specifically) hooked up? Have you tried jumpering F to B+ and then trying it?

 

It could be a fuel supply issue? Have you tried the jumper like mentioned above? Could use a little more information and some other test you have run. 88 is a year all in its own just to make you aware of it. Just reading your post you have swapped alot of parts and when it comes to the injectors, you need to pay close attention to what parts you swap.

Are you getting fuel to the injectors or into the cylinders? Reason I ask is mine is doing the same thing and I am sure it is just not getting the pulse to the injectors. You still have a little more troubleshooting to see if it is a fuel supply issue or injectors.

 

Have used the jumper the pump sends fuel in even when I turn the key I think it may be a combo of bad gas timing issue but idk I haven't checked what your saying to have hooked up

 

What is vaf I have directly jumped fp to b+