PO400 code

Asked by Jun 29, 2017 at 04:09 PM about the 1997 Chevrolet Camaro Z28

Question type: Maintenance & Repair

I keep getting a PO400 code on my scanner. I changed the EGR valve , EGR
solenoid , also the MAP sensor. Any other ideas what it could be?  The car
has only 31,000 miles on it. It's driving me crazy. What about the inboard O2
sensor.

No answers yet

Your Answer

Chevrolet Camaro Experts

  • #1
    dandyoun
    Reputation
    1,760
  • #2
    carGrrl
    Reputation
    1,200
  • #3
    Tom Demyan
    Reputation
    1,090
View All

Related Models For Sale

Used Ford Mustang
7 Great Deals out of 1,011 listings starting at $4,500
Used Chevrolet Corvette
573 listings starting at $4,450
Used Ford F-150
535 Great Deals out of 10,151 listings starting at $1,800
Used BMW 3 Series
140 Great Deals out of 1,713 listings starting at $2,990
Used Chevrolet Impala
148 Great Deals out of 1,047 listings starting at $1,200
Used Jeep Wrangler
105 Great Deals out of 1,751 listings starting at $6,950
Used Pontiac Firebird
14 listings starting at $8,900
Used Jeep Grand Cherokee
100 Great Deals out of 2,978 listings starting at $1,490
Used GMC Sierra 1500
282 Great Deals out of 10,626 listings starting at $1,800
Used Honda Accord
82 Great Deals out of 950 listings starting at $1,815
Used Mercedes-Benz C-Class
142 Great Deals out of 1,353 listings starting at $3,000

Used Cars For Sale

2015 Chevrolet Camaro Z28 For Sale
4 listings starting at $61,988

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.