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

42,925

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 out of 3 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 1,970
#2 yetilikesbeer
yetilikesbeer
Reputation 1,280
#3 Rowefast
Rowefast
Reputation 1,010
View All

Related Models For Sale

Used Chevrolet Tahoe
564 Great Deals out of 28,965 listings starting at $1,699
Used Chevrolet S-10
11 Great Deals out of 1,349 listings starting at $1,395
Used Chevrolet Silverado 1500
1,683 Great Deals out of 174,972 listings starting at $1,250
Used GMC Jimmy
262 listings starting at $2,495
Used Ford Explorer
944 Great Deals out of 72,548 listings starting at $1,499
Used Jeep Grand Cherokee
1,046 Great Deals out of 74,668 listings starting at $750
Used Ford F-150
2,178 Great Deals out of 206,277 listings starting at $1,499
Used Chevrolet Camaro
219 Great Deals out of 30,798 listings starting at $1,217
Used Jeep Wrangler
271 Great Deals out of 18,084 listings starting at $2,950
Used Chevrolet Suburban
322 Great Deals out of 19,578 listings starting at $1,350
Used Chevrolet C/K 1500
896 listings starting at $2,500
Used GMC Yukon
359 Great Deals out of 18,002 listings starting at $2,950

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.