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 Nathan B Your Own Question

Nathan B
Nathan B, Nvq3 motor mechanic
Category: Vauxhall
Satisfied Customers: 2
Experience:  Over 20 years experience including running my own garage working on a wide range of vehicles.
27720961
Type Your Vauxhall Question Here...
Nathan B is online now

miss fire on a astra 1.8 03 lpg manufacture fitted. fault

Customer Question

miss fire on a astra 1.8 03 lpg manufacture fitted. fault first occurred when running on lpg. we had fault codes read they were 1. throttle position sensor circuit 0220 2. electrical throttle control reduced power 1550, We changed the tps sensor as complete unit throttle body, also cleaned it up throttle body , didn't help the miss fire. next we changed the crank sensor, no effect. then we changed the spark plugs. and ignition coil pack. ( not a gm part ) . no change, we then got a plug and go ecu that didn't require coding via vauxhall which we fitted, still nothing helped left with misfire on 2 cylinders. Then car ran out of gas totally empty and the fault stopped completely car ran perfectly fine on petrol only. so after all that I just accepted it and ran it on petrol only 5 months. then last week it started to misfire again while running on petrol again no gas in tank, I thought it would be the ignition pack as I didn't use original gm part the first time. so I ordered a better ignition coil http://www.eurocarparts.com/ecp/c/Vauxhall_Astra_1.8_2003/p/car-parts/car- electrics-and-car-lighting/ignition/ignition-coils/?413720060&1&ea10f7d200260ff678d2a1ae26c2ccaadad3cbf9&000197 . but that had no effect on the misfire once fitted. Totally stumped as to what it could be, should I have had the codes read prior to the new ignition coil would that help, I doubt it grasping at straws perhaps, hopefully I can reach more experts here than in myt local vauxhall garages as they look at me with a blank expersion and say well its LPG!.. Thanks Craig

I have just checked something and it turns out that theres gas in the tank again, my partner must have put it in, so its possible that once this has ran out it will cure the misfire,  which requires fixing anyway so I can use the lpg system

Submitted: 1 year ago.
Category: Vauxhall

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!
    Sue
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you 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:

 
 
 
  • Robert

    Robert

    Vauxhall Technician

    Satisfied Customers:

    141
    Fully qualified 19+yrs exp/self employed technician in the UK
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordtwo/2014-12-19_163422_arrepair.64x64.jpg Robert's Avatar

    Robert

    Vauxhall Technician

    Satisfied Customers:

    141
    Fully qualified 19+yrs exp/self employed technician in the UK
  • http://ww2.justanswer.com/uploads/IN/indytech/2013-8-8_102717_SantoDomingo146598x6402.64x64.jpg Greg's Avatar

    Greg

    Technician

    Satisfied Customers:

    1080
    Automotive diagnostic tech
  • http://ww2.justanswer.com/uploads/35/350matt/2012-6-7_182356_matsavatr.64x64.jpg Matt's Avatar

    Matt

    Mechanical Engineer

    Satisfied Customers:

    4440
    BEng hons Mech engineering, in auto industry 22 years
  • http://ww2.justanswer.com/uploads/TE/techmachine/0601821347169_717372168_8940977_39623330_o.64x64.jpg Ross's Avatar

    Ross

    Diagnostic and repair technician

    Satisfied Customers:

    453
    Licensed diagnostic and repair technician
  • http://ww2.justanswer.com/uploads/RO/RobMechanic/068.64x64.JPG Rob's Avatar

    Rob

    ASE Certified Technician

    Satisfied Customers:

    82
    30 years trade experience
  • http://ww2.justanswer.com/uploads/UK/ukiaibal/2012-11-9_205920_SAM0109.64x64.JPG uk_iaibal's Avatar

    uk_iaibal

    UK Car Mechanic

    Satisfied Customers:

    1
    Verified Car Mechanic.