How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Juan Crespo Your Own Question
Juan Crespo
Juan Crespo, Tech Trainer
Category: Ford
Satisfied Customers: 1516
Experience:  A.S.E. Master Technician, Advanced Level, Emissions - Asian, Domestic, & European
19298667
Type Your Ford Question Here...
Juan Crespo is online now
A new question is answered every 9 seconds

Code 172 : the right bank runs lean : 1994 mustang gt : yes.

Customer Question

code 172
JA: Have you scanned the code? Have you tried to reset it?
Customer: the right bank runs lean
JA: What is the model/year of your Ford?
Customer: 1994 mustang gt
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: yes. nothing so far
JA: Anything else you think the mechanic should know?
Customer: just replaced the Icm may not be correct module
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Ford Mechanic about your situation and then connect you two.
Submitted: 6 months ago.
Category: Ford
Expert:  Juan Crespo replied 6 months ago.

Hi there.

Try to induce a rich condition by introducing carb cleaner through one of vacuum hoses connected to the intake. If the O2 sensor goes rich, then you'll know the issue is either vacuum or fuel pressure/volume related.