Code Help! P0301, P0171, Pending P0300 - Page 2 - Toyota 4Runner Forum

spartacus · 08-06-2024, 11:33 AM

Quote:

Originally Posted by DWilliam

Thanks! Same codes? Did you have the little hesitation when giving it gas after filling up the tank? Any other symptoms?

MIne always had the problems when heat soaked. After every troubleshooting session just when I thought I had the it fixed, it re-emerged.

Endlessblockades · 08-07-2024, 01:14 AM

Quote:

Originally Posted by spartacus

MIne always had the problems when heat soaked. After every troubleshooting session just when I thought I had the it fixed, it re-emerged.

Same here. If i could go back in time I would heed the advice from people on this forum who suggested I bite the bullet and get a full set of MotorWest Performance tuned refurbed Denso injectors with o-rings and seals preinstalled, banjo washers, and plenum gaskets and be done with chasing fuel delivery gremlins. Sure I'm happy to have new coil packs, plugs, wires, a clean MAF sensor, an Airaid intake and peace of mind knowing I have good compression on all cylinders, but I spent a lot more time and money getting to the end result - a warm restart without a CEL and a bad combustion stumble

DWilliam · 08-07-2024, 12:17 PM

Quote:

Originally Posted by Endlessblockades

Same here. If i could go back in time I would heed the advice from people on this forum who suggested I bite the bullet and get a full set of MotorWest Performance tuned refurbed Denso injectors with o-rings and seals preinstalled, banjo washers, and plenum gaskets and be done with chasing fuel delivery gremlins. Sure I'm happy to have new coil packs, plugs, wires, a clean MAF sensor, an Airaid intake and peace of mind knowing I have good compression on all cylinders, but I spent a lot more time and money getting to the end result - a warm restart without a CEL and a bad combustion stumble

I’m going to have my mechanic do the injector install. Should I do the plenum gasket as well? If so, do you have a part number? (2002). Anything else while he’s in there?

Endlessblockades · 08-07-2024, 03:23 PM

Quote:

Originally Posted by DWilliam

I’m going to have my mechanic do the injector install. Should I do the plenum gasket as well? If so, do you have a part number? (2002). Anything else while he’s in there?

The plenum gaskets are a pair and should be replaced. The fuel rail (Banjo) crush washers need to be replaced at the same time. I had a throttle body gasket but I didn't use it. i got all the parts together from MotorWest so I'm not sure what the toyota P/N would be but the gasket MFG was Reinz Mahle or something like that.

DWilliam · 08-08-2024, 08:17 AM

Quote:

Originally Posted by Endlessblockades

The plenum gaskets are a pair and should be replaced. The fuel rail (Banjo) crush washers need to be replaced at the same time. I had a throttle body gasket but I didn't use it. i got all the parts together from MotorWest so I'm not sure what the toyota P/N would be but the gasket MFG was Reinz Mahle or something like that.

Thanks. I didn’t realize they had the gasket and crush washers too.

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