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Car stalls?

Tiny
BETHWAH
  • MEMBER
  • 1999 MAZDA PROTEGE
  • 1.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 64,000 MILES
Hi, replaced the timing belt on the car listed above, and the car now stalls on idle and chokes off when hitting accelerator. Verified all timing marks are correctly aligned, replaced mass air flow sensor, cleaned EGR, tested compression and fuel pressure. Any thoughts? At a loss, thanks!

(Original codes: PO171, P0455, no longer present since initial diagnostic).
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Wednesday, May 3rd, 2017 AT 2:26 PM

27 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
What was fuel pressure when you checked it. Should be 41-46 psi key on only if not that may be the problem as you had a 171 code. Also the 455 code is a massive evaporator canister leak so that should be smoke tested to find it or lines were hooked up wrong. Also, check for air leaks like from air cleaner to throttle body.
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Tuesday, August 4th, 2020 AT 12:17 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Thank you so much! Will try this first thing in the morning and let you know how we did.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Fuel pressure is key on, engine off: 0 psi, with car running, 39 psi.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Installing new fuel pump, will keep you posted!
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Fuel pump did not work.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Recheck the massive evap leak that can cause it as well as it may be a vacuum line disconnected and re scan for codes and if any get back to us.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
No codes, vacuum line connect correctly. This car is driving me nuts!
Checking for massive evap leak, need to grab the equipment and get back to the vehicle.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The only thing I can think of is that engine was not turned over two revolutions and timing tension-er has knocked it out of align. Also crank sensor is supposed to be check for gap.020-.059" as that may cause the problem otherwise I will have to pass this on.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
We actually have not checked that. Fingers crossed! Otherwise, you will pass and I am jumping off a building LOL. I will let you know what happens :)
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
RENEE L
  • ADMIN
  • 1,260 POSTS
Hi BETHWAH,

I have forwarded your question to Ken our top mechanic and Admin here at the site. He will get back to you shortly.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Hello there,

It really sounds like to me that the timing belt is off one tooth. These can be difficult becasue sometimes the marks don't line exactly.

https://www.2carpros.com/diagrams/mazda/protege/1999

Here is a guide that will show you where the marks should be, if possible send a picture of the marks lined up on TDC

Sorry you about taking it back apart but we have had to do that many times at the shop.

Please let us know what happens.

Cheers, Ken

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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Thanks, will likely end up sending a pic. The car is on location, we are towing it back to the shop this morning and I'll keep you posted. Thank you all very much for your help with this!
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
We will be here :)
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Thanks! Have another car that jumped in line so might be tomorrow before I have pic. Thank you all so much for your help and patience!
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Here's some pics!
Images (Click to make bigger)
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Have you checked the ignition timing on this beast? Shold be 9-11 btdc. He only other thing I can think of is to hook a scanner up and freeze frame it when this happens. Then read sensors and see If something shows up.
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
Ok, will do. Also, disconnected the battery before replacing the timing belt. I can't do the relearn because I can't get it running long enough. Any ideas on that?
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
It will relearn as you drive it. how long does this run anyhow just for a few seconds? if it does try a security system reset because you disconnected battery. see link.
https://www.2carpros.com/articles/how-to-reset-a-security-system
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
BETHWAH
  • MEMBER
  • 17 POSTS
PS. Did check ignition timing with a scan tool, about to do with timing light now. Keep you posted :)
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Tuesday, August 4th, 2020 AT 12:18 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,602 POSTS
Hello,

It looks like there are more marks on the cam sprockets. You are looking a dot I believe. There are two lines on each one so I don't think you are on the right ones. Can you take a picture of the entire sprocket please?

Best, Ken
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Tuesday, August 4th, 2020 AT 12:18 PM

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