Check engine light after driving [several times] through a [LARGE] puddle - TundraTalk.net - Toyota Tundra Discussion Forum
User Tag List

 
LinkBack Thread Tools
post #1 of 4 (permalink) Old 01-07-2019, 06:59 PM Thread Starter
Junior Member
 
Join Date: Jan 2019
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
Check engine light after driving [several times] through a [LARGE] puddle

Hi guys! Quick history. Bought this 03 tundra 4.7 Christmas eve. It has 220k on the chassis, 67k on a new (rebuilt?) Toyota engine. Truck had check engine light on when I bought it. Also had Flowmaster with dual exhaust, with one of the pipes completely disconnected from the exit side of the muffler. Took it to oriellys before buying, read an oxygen sensor code. $75, great! Bought the thing.

Last weekend I went to my muffler shop and got a new Flowmaster (turns out the muffler itself was done) and that actually cleared the check engine light. Awesome.

Then I went off roading. Nothing crazy, but I DID take several good passes through a giant puddle. Immediately, the check engine light went on. CRAP.

So I used my adultness and didn't panic. Can be something stupid, I thought. Just left oriellys. It's about a dozen codes.

I know you'll want to know the specific codes - I have to go back and record them. I just committed them to memory for now.

Basically, here are the issues:

-malfunction in primary fuel pump circuit
-all oxygen sensors malfunctioning
-fuel mixture too lean
-voltage either too high, or too low

Now, without tooting my own horn, I am an A&P certified mechanic. I'm not omniscient by any means, but I'm not buying blinker fluid either.

Here are my thoughts:

1. Any to all of the oxygen sensors got shorted out, causing a faulty reading in the system, causing the fuel pump to send an incorrect mixture.

2. The fuel pump wiring has a faulty ground somewhere, which should dry out eventually.

I'm really just hoping that someone else has driven through a puddle at some point, and had similar issues. The thing still runs, and quite well, kind you. No noticeable difference. But I do need to fix it asap because this idiot didn't register it when he fixed the check engine light the first time, and now I'm kicking myself.

Thanks in advance, if only just for reading this essay
Anekrasov is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 01-08-2019, 08:24 AM
Senior Member
 
Nm6300'asl's Avatar
 
Join Date: Oct 2017
Posts: 125
Thanks: 0
Thanked 28 Times in 22 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 40 Post(s)
Never heard of that but does sound wiring related, something got pulled loose-bad ground-water where water doesnt belong
Nm6300'asl is offline  
post #3 of 4 (permalink) Old 01-09-2019, 09:18 AM Thread Starter
Junior Member
 
Join Date: Jan 2019
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
(Thread Starter)
Thanks for your reply

I was right, yesterday afternoon I got in the truck and suddenly, everything was fine. We also got rain Monday, which may have extended drying time.

Definitely relieved, but also a little disappointed. I've taken my YJ through that same puddle dozens of times. Granted, not as much electronics and it's designed for off road, but still, a puddle? Bah.

Anyway, thanks for reading! Maybe this will help someone in the future.
Anekrasov is offline  
 
post #4 of 4 (permalink) Old 01-09-2019, 09:38 AM
Senior Member
 
osubam's Avatar
 
Join Date: Apr 2013
Posts: 272
Thanks: 25
Thanked 208 Times in 121 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 54 Post(s)
Quote:
Originally Posted by Anekrasov View Post
Thanks for your reply

I was right, yesterday afternoon I got in the truck and suddenly, everything was fine. We also got rain Monday, which may have extended drying time.

Definitely relieved, but also a little disappointed. I've taken my YJ through that same puddle dozens of times. Granted, not as much electronics and it's designed for off road, but still, a puddle? Bah.

Anyway, thanks for reading! Maybe this will help someone in the future.
You should not be having that issue just driving in some puddles. I've fought ground issues like this in other vehicles. Good luck, electrical issues can be a pain in the ass.

2013 TRD Rock Warrior,TRD Dual exhaust,K&N CAI,2 Alpine amps,W3T10" JL shallow mount sub, Focal speakers,3-Trumpet Train Air Horn Kit 150dB,Access Cover, Hood Guard, AMP power steps,Smitty Bull Bar, Bully Dog GT+T tuner, 35/12.5/17, Steel grill, Hammerhead rear bumper, Coachman 3" Shackles, steering stops and Tie rods
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
osubam is offline  
Sponsored Links
Advertisement
 
Reply

  TundraTalk.net - Toyota Tundra Discussion Forum > Tundra Discussion > Tundra Problems: Maintenance, Repair & Dealer/Warranty Issues

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the TundraTalk.net - Toyota Tundra Discussion Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome