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98 Toyota Tacoma 2.4l. After hurricane Irma filled up with…

Customer Question
98 Toyota Tacoma 2.4l ...

98 Toyota Tacoma 2.4l

Mechanic's Assistant: Are you fixing your Tacoma yourself? What have you tried so far?

After hurricane Irma filled up with gas, truck miss firing. I replaced coil, fuel pressure regulator, vacuum modulator for egr, map, air filter, fuel filter, replaced screens on fuel injectors all were clean,and seals, replaced #2 fuel injector twice from eBay, fuel injectors clicking OK, fuel pump pressure 44psi, pulled plugs allowed to spark. On engine , all spark, vacuum gage 22 but fluctuating, compression on #2 cyl. 156psi, added fuel cleaners, heet, sea foam, gum out complete cleaner. Some improvement but not lasting.

Mechanic's Assistant: Is the fuel filter an external one, or is it inside the tank?

Autozone ck. Engine analysis, po302 cyl. 2 too many misfires within a predetermined period of time, po300 multiple misfire detected,po141 ho2s-12 bank 1 sensor2 heater circuit malfunction.

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Yes

Submitted: 4 months ago.Category: Toyota
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Answered in 6 hours by:
12/22/2017
Toyota Mechanic: sprinkles08, ASE Certified Technician replied 4 months ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: Toyota
Satisfied Customers: 23,783
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified

Hello and welcome to JustAnswer! I apologize for the extended wait time you experienced, I've only just come online now and would like to assist you with your question.

There are quite a few things that can cause misfiring. The problem may be with the ignition system, it may be an injector related issue, it could be a localized vacuum leak causing a single cylinder to run lean, or it could be an internal engine issue.

Have you taken a fuel sample?

Did you test compression on the other cylinders for comparison?

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sprinkles08
sprinkles08, ASE Certified Technician
Category: Toyota
Satisfied Customers: 23,783
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Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience

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