So, I just finished replacing the wastegate actuator with the ATP version, and although my car holds boost much better, I'm still having this damn idle problem. I've been noticing that when I let off the gas, I can hear a distinct whistling noise (although I'm not sure exactly where it's coming from), as well as when I first start it up. Also, when I shift into neutral, the RPM's dip extremely low (to about 200-300 RPM), almost killing it, and then going back up to around 800. Thinking it could be an exhaust leak? Any feedback is greatly appreciated! Thanks!
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Exhaust Leak?
- Thread starter bwlknsn91
- Start date
CR3 Motorsports
Member
Have you checked for Vac/boost leaks?
Have you checked for Vac/boost leaks?
Yeah, I looked closely at all the intake piping while I was changing the wastegate and found nothing.
Seafoaming will reveal an exhaust leak.
My buddy and I plan on taking a smoke machine to it this weekend. Are there any areas known for cracking, causing a leak?
Exhaust leak will not cause your idle issue. My car did the same thing, rerouted the maf and its good.
Only problem is I still have the stock intake piping. Is it still possible to do so?
Maiello169
Member
- :
- Mazda, Protege, Speed
Seafoaming will reveal an exhaust leak.
How would seafoam reveal an exhaust leak? I currrently am habit.g that issue right now ...
- :
- 2003 mazdaspeed protege
I check around the throttle body missing or loose parts
Maiello169
Member
- :
- Mazda, Protege, Speed
If you run the Seafoam through your brakeboost line, the smoke created will be released through possible cracks in the hosing/manifold, etc.
Really? And after doing that would I need to flush it out ?
Maiello169
Member
- :
- Mazda, Protege, Speed
No, all the Seafoam converts into a smoke and exits through your exhaust pipe. Should only take about 30 minutes to finish the whole process.
would that be the same way if i was to do it through my vac lines ? cuz i know a lot of people use seafoam for that to, and wasnt sure how save it was... i normaly just put it in the gas tank...
would that be the same way if i was to do it through my vac lines ? cuz i know a lot of people use seafoam for that to, and wasnt sure how save it was... i normaly just put it in the gas tank...
Yup, exact same concept. I just dropped about 1/3 to 1/2 a can into the brake booster line with running (have someone rev the engine to keep it from dying), turn it off and let it sit for about 10 to 15 minutes, turn it back on and have someone rev it up again while another looks for any signs of the smoke anywhere in the engine bay/exhaust piping. The smoke should clear after running the car for about 20 minutes.
dimsumgalore
Member
- :
- 2003.5 Mazdaspeed Protege LASER BLUE
GL on this brother, I have that same problem as you. I have changed all my VAC lines and I still haven't figured it out. Checked out the hot and cold pipe for cracks. Right now I'm about to change the spark plugs and see whats happening :-(
Maiello169
Member
- :
- Mazda, Protege, Speed
I'll have to give that a try this weekend, thanks for the helpYup, exact same concept. I just dropped about 1/3 to 1/2 a can into the brake booster line with running (have someone rev the engine to keep it from dying), turn it off atnd let it sit for about 10 to 15 minutes, turn it back on and have someone rev it up again while another looks for any signs of the smoke anywhere in the engine bay/exhaust piping. The smoke should clear after running the car for about 20 minutes.
Maiello169
Member
- :
- Mazda, Protege, Speed
I can do the vac lines the same time as I do the other right ?
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