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 Mark Your Own Question

Mark, Technician
Category: Toyota
Satisfied Customers: 1504
Experience:  Qualified City & Guilds
Type Your Toyota Question Here...
Mark is online now

engine light came on when fuel was low and then fuel light o

Customer Question

I have just bought a 2002 avensis with 85000 miles, with full dealer service history. It has had a full RAC inspection and was no problems. I have just picked it up and petrol light was on, whilst i was driving to the petrol station the amber engine light came on. I was hoping it was a warning because i was low on fuel and the fuel light was on, then the engine light came on and the fuel light went off (even though i hadnt filled up at that point) which is leading me suspect it was something to do with the petrol being low, but its remained on since filling up. It is running nice and smooth and no problems. I have read some forums that say how you can reset the system if it was just to do with the fuel being low, but i dont want to do that if it could be another problem-however i know it can be expensive getting diagnostic checks and you can end up replace loads of parts and sensors and the light may still come on? do you have any advice please? 

ps i have it booked in for a service on monday so if there is no answer by then they will be sorting it out. 

Submitted: 3 years ago.
Category: Toyota
Expert:  Shantal-Mod replied 3 years ago.

I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.

I wonder whether you're ok with continuing to wait for an answer. If you are, please let me know and I will continue my search. If not, feel free to let me know and I will cancel this question for you.

Thank you!

Customer: replied 3 years ago.




Thanks i have until monday when the car goes into the garage in will be plugged in for a diagnostic check, i was hoping for an answer before then, if not by then you can cancel my question.





Expert:  Shantal-Mod replied 3 years ago.
Hello Ian,

We will continue to look for a Professional to assist you.

Thank you for your patience,

Expert:  Mark replied 3 years ago.



The fuel level warning and engine management light are not linked. However low fuel level could cause a fault code to be stored by the engine management system if the low fuel were to cause the engine to misfire or have a lack of power.

You will still need to go to a garage to have the fault code identified and the light put out.

However, as the engine is currently running ok, I would not be fitting new parts at this stage.

What should be done is the code is read and recorded. It should then be cleared and the car road tested. If the light stays off then no further work is required. If it comes back on and it is the same code as before, then you may need to replace parts or carry out repairs.



What Customers are Saying:

  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
< Previous | Next >
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, do indeed know your stuff. Jim
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C.
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex

Meet The Experts:

  • Matt


    Mechanical Engineer

    Satisfied Customers:

    BEng hons Mech engineering, in auto industry 22 years
< Last | Next >
  • Matt's Avatar


    Mechanical Engineer

    Satisfied Customers:

    BEng hons Mech engineering, in auto industry 22 years
  • Mike Kelly's Avatar

    Mike Kelly

    Toyota Mechanic

    Satisfied Customers:

    17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.
  • indy-tech's Avatar


    Import tech

    Satisfied Customers:

    Import technician .
  • Ross's Avatar


    Diagnostic and repair technician

    Satisfied Customers:

    Licensed diagnostic and repair technician
  • Rob's Avatar


    ASE Certified Technician

    Satisfied Customers:

    30 years trade experience
  • uk_iaibal's Avatar


    UK Car Mechanic

    Satisfied Customers:

    Verified Car Mechanic.