I get a PO452 code read. Also engine does not start up on first key turn.

35

Asked by Oct 29, 2007 at 09:20 PM about the 2000 Chevrolet Blazer 4 Door LS 4WD

Question type: Maintenance & Repair

My Blazer would always start on first crank. Now weather it is hot or cold outside or engine temp hot or cold, it take at least two turns of the key to start up.

1 Answer

44,575

Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer). First thing to do is make sure the gas cap is good and tightened properly. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight. Barring a wiring problem it can be a bad FTPS or PCM. Found this for you at WikiAnswers.com

3 of 3 people found this helpful.

Your Answer

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,030
  • #2
    yetilikesbeer
    Reputation
    1,350
  • #3
    Rowefast
    Reputation
    1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
660 Great Deals out of 39,377 listings starting at $1,000
Used Chevrolet S-10
8 Great Deals out of 1,217 listings starting at $2,500
Used GMC Jimmy
239 listings starting at $1,950
Used Chevrolet Silverado 1500
2,101 Great Deals out of 166,938 listings starting at $1,498
Used Jeep Grand Cherokee
880 Great Deals out of 70,098 listings starting at $1,045
Used Chevrolet Suburban
338 Great Deals out of 21,662 listings starting at $1,900
Used Ford F-150
2,281 Great Deals out of 181,532 listings starting at $1,000
Used Ford Explorer
842 Great Deals out of 62,920 listings starting at $1,000
Used Chevrolet Camaro
399 Great Deals out of 30,568 listings starting at $3,550
Used Jeep Wrangler
297 Great Deals out of 16,151 listings starting at $2,500
Used Chevrolet C/K 1500
4 Great Deals out of 863 listings starting at $2,000
Used Jeep Cherokee
350 Great Deals out of 46,171 listings starting at $2,795

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.