I have a 1999 Mazda Millenia s 2.3 liter I have a code of p0 173 and I was wondering if someone can tell me how I can repair that thanks

Asked by May 25, 2013 at 11:18 PM about the 1999 Mazda Millenia 4 Dr S Supercharged Sedan

Question type: Maintenance & Repair

2 Answers

293,035

That code is for a vacuum leak. Check all hoses after the MAF for proper connections and cracks. Easist way to find is start the car, open the hood, and move the hoses around listening for air escaping. Also check all plastic elbows and connections. You can also use spray some starting fluid around the hoses and if there is a leak, the idle will increase.

150

second on the vacuum leak. there are 3 actual "t" shaped 3 way connectors, one of them is probably cracked and leaking. they are cheap, but labor intensive to replace. you will have to remove the intake. not too difficult, but it takes a while, because there are so many parts. look at your map sensor, it lives on a bracket behind the passenger side upper strut mount. there is a solenoid which has a vacuum line, follow that line to the snout of the compressor. you will see one of the "t's", but i dont think you have room to change it. farther in from this T is another, and both are famous for breaking. i just changed all the vacuum lines and tees(there are also several 'Y' shaped connectors) on both our 99's

2 people found this helpful.

Your Answer:

Mazda Millenia Experts

  • #1
    Steven Cisneros
    Reputation
    770
  • #2
    Keith12345
    Reputation
    420
  • #3
    Tom Demyan
    Reputation
    250
View All

Related Models For Sale

Used Toyota Camry
761 Great Deals out of 72,913 listings starting at $1,000
Used Nissan Maxima
208 Great Deals out of 16,521 listings starting at $1,650
Used Mitsubishi 3000GT
71 listings starting at $4,000
Used BMW 3 Series
857 Great Deals out of 31,323 listings starting at $1,250
Used Lexus GS 300
11 Great Deals out of 539 listings starting at $3,950
Used Mazda Protege
169 listings starting at $2,195
Used Honda Accord
574 Great Deals out of 103,380 listings starting at $950
Used Mazda MX-5 Miata
54 Great Deals out of 4,636 listings starting at $1,900
Used Mazda RX-7
62 listings
Used Mazda 626
116 listings

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.