RPM drop on startup?
05-15-2012, 11:51 PM
#1
RPM drop on startup?
Hey all,
I'll get to the point.
Starting my '04 Z for over a year now has been normal, except for the last six months where sometimes at startup the Z would go to normal rev..then drop a little more than normal...make a silent pause sound..then it revs up to stable around 1k.
For the first time today, on a warm day, (not a cold winter or anything) it did the lowest rpm drop and stuttered to almost stalling..and then caught itself.
It seems to have progressed to this point, as it didn't use to go as low in rpm drop as six months ago, then it went a little lower, and now it truly almost stalled. Every startup from then today, about six of them, was dead on perfect.
I'm no mechanic...and this is my first Z bought a little over a year ago.
Mileage at 101,000 and change, was examined by a garage and dealership has seen my car too, all say it's in really great condition.
All help appreciated as to what to look for or try, and thanks sincerely for all help in diagnosing and fixing this issue. This is my baby!
Saved
I'll get to the point.
Starting my '04 Z for over a year now has been normal, except for the last six months where sometimes at startup the Z would go to normal rev..then drop a little more than normal...make a silent pause sound..then it revs up to stable around 1k.
For the first time today, on a warm day, (not a cold winter or anything) it did the lowest rpm drop and stuttered to almost stalling..and then caught itself.
It seems to have progressed to this point, as it didn't use to go as low in rpm drop as six months ago, then it went a little lower, and now it truly almost stalled. Every startup from then today, about six of them, was dead on perfect.
I'm no mechanic...and this is my first Z bought a little over a year ago.
Mileage at 101,000 and change, was examined by a garage and dealership has seen my car too, all say it's in really great condition.
All help appreciated as to what to look for or try, and thanks sincerely for all help in diagnosing and fixing this issue. This is my baby!
Saved
05-16-2012, 01:25 AM
#3
New Member
iTrader: (1)
Join Date: Sep 2009
Location: Hong Kong
Posts: 263
Likes: 0
Received 0 Likes
on
0 Posts
Any code throw out? From my experiences it might be a broken MAF sensor or a going to fail Fuel Pump!!! I have the same sympthom like you and I replaced a completel new fuel pump unit OEM and it works fine now no more drop to low rpm on idle!!!
Hey all,
I'll get to the point.
Starting my '04 Z for over a year now has been normal, except for the last six months where sometimes at startup the Z would go to normal rev..then drop a little more than normal...make a silent pause sound..then it revs up to stable around 1k.
For the first time today, on a warm day, (not a cold winter or anything) it did the lowest rpm drop and stuttered to almost stalling..and then caught itself.
It seems to have progressed to this point, as it didn't use to go as low in rpm drop as six months ago, then it went a little lower, and now it truly almost stalled. Every startup from then today, about six of them, was dead on perfect.
I'm no mechanic...and this is my first Z bought a little over a year ago.
Mileage at 101,000 and change, was examined by a garage and dealership has seen my car too, all say it's in really great condition.
All help appreciated as to what to look for or try, and thanks sincerely for all help in diagnosing and fixing this issue. This is my baby!
Saved
I'll get to the point.
Starting my '04 Z for over a year now has been normal, except for the last six months where sometimes at startup the Z would go to normal rev..then drop a little more than normal...make a silent pause sound..then it revs up to stable around 1k.
For the first time today, on a warm day, (not a cold winter or anything) it did the lowest rpm drop and stuttered to almost stalling..and then caught itself.
It seems to have progressed to this point, as it didn't use to go as low in rpm drop as six months ago, then it went a little lower, and now it truly almost stalled. Every startup from then today, about six of them, was dead on perfect.
I'm no mechanic...and this is my first Z bought a little over a year ago.
Mileage at 101,000 and change, was examined by a garage and dealership has seen my car too, all say it's in really great condition.
All help appreciated as to what to look for or try, and thanks sincerely for all help in diagnosing and fixing this issue. This is my baby!
Saved
05-16-2012, 11:54 AM
#4
Where would the code throw out?, on the left gauge at top of center console?
Mine always reads speedometer as that's how I've set it, but if a code throws...would it stay on that gauge until I click something, or would it disappear before I noticed it?
No codes seen anywhere that I can tell, and thanks for the reply.
My dad wondered about the air filter as well, but we don't know yet.
What did the fuel pump run ya? And is it DIYable?
Saved
Mine always reads speedometer as that's how I've set it, but if a code throws...would it stay on that gauge until I click something, or would it disappear before I noticed it?
No codes seen anywhere that I can tell, and thanks for the reply.
My dad wondered about the air filter as well, but we don't know yet.
What did the fuel pump run ya? And is it DIYable?
Saved
05-16-2012, 03:11 PM
#5
Registered User
Join Date: Jan 2009
Location: Scottsdale, AZ / Sonoma, CA
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
codes are stored in the ecu. your check engine light would alert you to the fact that your car is throwing an error code. you can go to autozone, borrow an OBD reader, plug it into your cars diagnostic port and see what code is being thrown, specifically.
Thread
Thread Starter
Forum
Replies
Last Post
Lt_Ballzacki
Brakes & Suspension
39
08-06-2021 06:19 AM
