Can I run the engine long enough to turn the car around without the Upstream O² Sensor operating once I cut the burnt wires running to it?

1998 DODGE CARAVAN
360,000 MILES • 3.3L • V6 • 2WD • AUTOMATIC
Avatar
SANDSTORM58
  • MEMBER
  • 16 POSTS
The idiot mechanic who last worked on my car changing that manifold didn't reconnect the harness in the proper place allowing it to fall into a gap in the manifold melting the connector and shorting out the system. It blew 4 20A Engine Fuses before finding it after placing a new PCM in the car.
Jul 14, 2022 at 12:08 PM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Hi,

Absolutely, you can. It will likely set a code, but chances are that has already happened if the wiring was melted.

Let me know if you run into any trouble or have questions.

Take care,

Joe
Jul 14, 2022 at 3:17 PM
Avatar
SANDSTORM58
  • MEMBER
  • 16 POSTS
Code probably didn't set since I was attempting to check injector signals with a NOID light, and it never fired. Not worried about the code as I can clear it. Will let you know if I need help with it after I get it changed.
Jul 14, 2022 at 3:24 PM
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,244 POSTS
Hi,

You are very welcome. Let me know how things turn out for you. If you need schematics for the injection circuit, let me know.

Take care,

Joe
Jul 15, 2022 at 2:19 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle