How can I pass smog?

10

Asked by fremat_64 Jul 13, 2016 at 05:32 PM about the Ford F-150

Question type: Maintenance & Repair

Install new injectors, O2 sensor, MAP sensor, PCM. Yet will not pass smog,
high HC from tail pipe. Prior to installing new parts , truck was taken to
diagnostic shop.

4 Answers

101,335

Catalytic converter... if it's bad changing out sensors does nothing.

1 people found this helpful.
41,755

Wow... a parts change attack! HC is hydrocarbons, It could be the EVAP system which state are you in? let's assume not Cali...Please let us know the name of the "Dianostic shop" Post It. I would check the catalytic converter first! What year f150 and which engine? most run multi HEGO sensors.. with the correct gear this is easy to isolate and correct the cause of the emission. Did they provide a print out of HC Co Nox Co2? How many PPM over is it in HC

1 people found this helpful.
10

I live inc Cali. Name of Diagnostic Shop is AV Auto Clinic. I have a 1989 F150, 4.9 L, 5 speed manual trans. Truck has only one O2 sensor. Yes I have a printout. Max PPM is 96(15 mph, 1586 rpm), GP 305, Meas 489. CO% is Max 0.68 (same mph, rpm), GP 1.98, Meas 8.12. At 25 mph, 2443 rpm, Max PPM 69, GP 255 Meas 321. CO% (at same mph, rpm) Max 0.61, GP 2.17, Meas 7.58

1 people found this helpful.

Your Answer:

F-150

Looking for a Used F-150 in your area?

CarGurus has 12,802 nationwide F-150 listings starting at $599.

Postal Code:

CarGurus Experts

  • #1
    OJ
    Reputation
    41,770
  • #2
    Gene Arnett
    Reputation
    15,990
  • #3
    Rowefast
    Reputation
    15,420
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
222 Great Deals out of 9,112 listings starting at $2,900
Used GMC Sierra 1500
182 Great Deals out of 9,044 listings starting at $1,000
Used RAM 1500
536 Great Deals out of 22,655 listings starting at $3,300
Used Toyota Tundra
27 Great Deals out of 993 listings starting at $9,240
Used Ford F-250 Super Duty
31 Great Deals out of 720 listings starting at $4,290
Used Toyota Tacoma
43 Great Deals out of 684 listings starting at $9,975
Used Dodge RAM 1500
85 listings starting at $2,500
Used Ford F-250
6 listings
Used Ford Mustang
61 Great Deals out of 1,603 listings starting at $6,500
Used Ford Ranger
20 Great Deals out of 521 listings starting at $5,400
Used Chevrolet Silverado 2500HD
39 Great Deals out of 1,814 listings starting at $1,000
Used Ford F-350 Super Duty
62 Great Deals out of 1,422 listings starting at $7,283
Used GMC Sierra 2500HD
37 Great Deals out of 2,272 listings starting at $9,999
Used Chevrolet Colorado
38 Great Deals out of 1,157 listings starting at $5,999
Used RAM 2500
77 Great Deals out of 2,517 listings starting at $15,878

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. Content will be removed if CarGurus becomes aware that it violates our policies.