TPS

Good morning Taco owners. I have a 2003 Tacoma pre-runner quad cab 3.4l with 310k. It’s always been a strong running truck until recently. While accelerating, the engine would hesitate and struggle to get gas. Most time stuttering. I replaced the fuel pump and strainer, the fuel filter, the forward oxygen sensor and mass air flow sensor. All parts were Denso parts except the MAF. I got the truck running but still had the hesitation. going back to previous threads on this forum has encouraged me to purchase the elusive TPS 4-pin sensor. Finally found one and put it on this morning.
The truck had problems cranking and staying cranked. So going back again to these forums I read about a possible faulty maf sensor. So after unplugging the terminal to the MAF, the truck cranks and stays running. i thought maybe the new MAF was the issue, so I put the old one back in and it still won’t stay running but for 2/3 seconds. I have completely un plugged the terminal to the MAF and now it cranks and has been sitting idling for 30 minutes.
im at a complete loss and looking for any advice given. Last resort is taking it to a mechanic. Thanks for any help in this

 

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