had an engine swap now i have trouble starting the car i have camshaft position sensor codes and multiple misfire code. Is the timing just off? what the repair or damage done?

Asked by Oct 07, 2014 at 11:48 AM about the 2004 Audi A4 3.0 quattro Sedan AWD

Question type: Maintenance & Repair

5 Answers

12,665

when you swapped the engine did you bring along the original ecm that came with that engine? if not this would most likely be the cause. either that or some one buggered up the engine but misplacing the firing order of the spark plug wires.

No, I didn't replace the ecm.

12,665

well each engine has its own ecm for a reason cause no two engines are exactly alike not to mention its also programed for that particular engine. Try disconnecting the battery for 15 -30 minutes and see if that fixes it. anything after that i would check the firing order for your engine and make sure the plugs are set correctly. Also check the plugs and wires and check for spark. Check your cam sensors as well its possible one is bad. did you get the engine from another dead car or one from a wrecking yard ? as it is possible you got an engine that had the timing fricked up.

I tried disconnected the battery no change it was still the same problem but I'll look into checking the cam sensors and spark plugs . The engine was from a car that was totaled but no damage to the engine.

12,665

well if you can't fix the issue see if you can't get the computer from the other car and try a swap it may or may not fix your issue if nothing else will. I am probably betting the fact the car it came from was totaled it more then likely could have damaged the engine from the shock of the impact it received in its wreck. let me know if you need any more help i am more then happy to provide more feed back if you require it.

Your Answer:

A4

Looking for a Used A4 in your area?

CarGurus has 9,716 nationwide A4 listings starting at $1,400.

ZIP:

Audi A4 Experts

  • #1
    Deathjam4
    Reputation
    4,370
  • #2
    Tom Demyan
    Reputation
    680
  • #3
    lukeyramone
    Reputation
    640
View All

Related Models For Sale

Used BMW 3 Series
987 Great Deals out of 30,188 listings starting at $900
Used Audi A6
118 Great Deals out of 6,090 listings starting at $1,500
Used Audi A3
72 Great Deals out of 5,717 listings starting at $2,999
Used Mercedes-Benz C-Class
623 Great Deals out of 25,226 listings starting at $1,100
Used Audi S4
29 Great Deals out of 1,181 listings starting at $2,999
Used BMW 5 Series
388 Great Deals out of 16,693 listings starting at $1,653
Used Honda Accord
664 Great Deals out of 101,953 listings starting at $999
Used Ford Mustang
317 Great Deals out of 38,105 listings starting at $1,312
Used Volkswagen Jetta
462 Great Deals out of 27,398 listings starting at $1,500
Used Mercedes-Benz E-Class
381 Great Deals out of 19,155 listings starting at $2,195

Used Cars For Sale

2018 Audi A4 For Sale
4,551 listings starting at $29,498
2017 Audi A4 For Sale
13 Great Deals out of 531 listings starting at $17,980
2016 Audi A4 For Sale
11 Great Deals out of 185 listings starting at $17,120
2015 Audi A4 For Sale
39 Great Deals out of 803 listings starting at $13,688
2014 Audi A4 For Sale
23 Great Deals out of 490 listings starting at $11,300

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.