Check engine light

10

Asked by Sep 21, 2014 at 09:31 PM about the 1996 BMW 3 Series 318i Convertible

Question type: Maintenance & Repair

340 and 420
I own a BMW z3 roadster 96
Above are the codes that are
popping up for my check engine
light. Can you tell me how much this
will cost? And if it's an easy fix? I'm
trying to smog it:(

1 Answer

242,025

P0340 is the camshaft position sensor. I'd replace that first, the P0420 is a cat code which might go away after you replace the sensor.

1 of 1 people found this helpful.

Your Answer

Add photo

Related Questions

  • Check Engine Light and Check Oil Light 5 answers

    I have the check engine light flashing and the oil light is on, what's up? The oil is full up to the line. I don't get it!

    BMW 3 Series

    -

    Maintenance & Repair

  • Check Engine Light. 4 answers

    My 1989 325i convertible runs great but idles a little rough. I am planning to replace the injectors; I've been looking at newer Bosch injectors for Mustangs. Is that a good idea? More to the point ...

    1989 BMW 3 Series 325i

    -

    Maintenance & Repair

  • Check engine light 1 answer

    340 and 420 I own a BMW z3 roadster 96 Above are the codes that are popping up for my check engine light. Can you tell me how much this will cost? And if it's an easy fix? I'm trying to smog it:(

    1996 BMW 3 Series 318i Convertible

    -

    Maintenance & Repair

  • 2009 BMW 328I check engine light. 5 answers

    I've had two repairs services for my car. Original problem CO2 sensors, now replaced. 2nd time - Cat converter, now my car is back in the shop for another Check engine light. This is the 3rd in a week...

    2009 BMW 3 Series 328i SULEV

    -

    Maintenance & Repair

  • Check ending light 4 answers

    I own a 96 BMW z3 roadster. My check engine light is bad. In order to pass smog I can not have the bad light. Is this an easy fix? I've heard it's very expensive to just change it. Also is it cons...

    1996 BMW 3 Series 318i Convertible

    -

    Maintenance & Repair

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,670
#2 Robert Charlson
Robert Charlson
Reputation 1,580
#3 Michael Branan
Michael Branan
Reputation 1,210
View All

Related Models For Sale

Used BMW 5 Series
466 Great Deals out of 15,436 listings starting at $500
Used BMW M3
50 Great Deals out of 1,361 listings starting at $3,800
Used Mercedes-Benz C-Class
429 Great Deals out of 25,479 listings starting at $2,000
Used Audi A4
291 Great Deals out of 10,505 listings starting at $1,200
Used Ford Mustang
543 Great Deals out of 45,845 listings starting at $1,999
Used Honda Accord
948 Great Deals out of 77,739 listings starting at $899
Used Mercedes-Benz E-Class
360 Great Deals out of 19,350 listings starting at $1,500
Used Chevrolet Camaro
244 Great Deals out of 31,194 listings starting at $369
Used BMW 7 Series
164 Great Deals out of 5,957 listings starting at $2,999

Used Cars For Sale

2017 BMW 3 Series For Sale
114 Great Deals out of 7,712 listings starting at $26,986
2016 BMW 3 Series For Sale
67 Great Deals out of 2,535 listings starting at $19,995
2015 BMW 3 Series For Sale
25 Great Deals out of 920 listings starting at $15,885
2014 BMW 3 Series For Sale
177 Great Deals out of 4,368 listings starting at $12,995
2013 BMW 3 Series For Sale
57 Great Deals out of 1,958 listings starting at $11,900

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.