Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

1JZ VVT-i running problems...

Thread Tools
 
Search this Thread
 
Old 11-09-12, 04:34 PM
  #1  
Hexxle
Driver School Candidate
Thread Starter
 
Hexxle's Avatar
 
Join Date: May 2012
Location: NSW
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Default 1JZ VVT-i running problems...

Hi peeps,

So just yesterday I noticed a bit of a problem with my car...
Ever since I have bought it (~4 months ago), the car has had a little pop in the exhaust on idle - it was hardly worth paying attention to so I ignored it.
But now I have noticed when I push the pedal to the metal in second gear, when it gets to around 6000rpm (-ish; maybe a bit less), the exhaust starts to pop, and I lose some power. Imaging wringing some bubble wrap, that's how close together the pops are sounding.

Now I haven't tried to diagnose myself yet, but my first thought was to spark plugs, because I haven't changed them while the car has been in my possession, and before that the car was driven less than 10 times in 2 years.

As of right now, the car only has a 3 inch turbo back, but is otherwise stock (engine-wise).

I'ma try that first, but if any of you have any suggestions, just yell out.

Peace out.
Old 11-09-12, 04:48 PM
  #2  
O. L. T.
Keeper of the light
iTrader: (17)
 
O. L. T.'s Avatar
 
Join Date: Feb 2003
Location: My little world
Posts: 34,101
Received 350 Likes on 226 Posts
Default

https://www.clublexus.com/forums/sc-...d-and-and.html

Help us help you.
Old 11-09-12, 05:15 PM
  #3  
Hexxle
Driver School Candidate
Thread Starter
 
Hexxle's Avatar
 
Join Date: May 2012
Location: NSW
Posts: 33
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the move - bit of a noob mistake.
Old 11-16-12, 10:01 AM
  #4  
BlakOnBlak
Driver
 
BlakOnBlak's Avatar
 
Join Date: Mar 2012
Location: Florida
Posts: 156
Likes: 0
Received 1 Like on 1 Post
Default

Whats up Hexxle - I made the same mistake -
I would definitly check the plugs first. Also check the coil packs for cracks. If your coil packs and plugs are good, then maybe you have a Boost leak. Is your check engine light on?
Old 11-16-12, 10:15 AM
  #5  
Ali SC3
Lexus Champion

iTrader: (10)
 
Ali SC3's Avatar
 
Join Date: Oct 2007
Location: CO
Posts: 10,761
Received 438 Likes on 368 Posts
Default

well the vvti coils are less prone to cracking, but have a look and change the plugs out while you are in there.
Old 11-17-12, 05:27 PM
  #6  
robtackett
Driver School Candidate
iTrader: (1)
 
robtackett's Avatar
 
Join Date: Sep 2012
Location: Ky
Posts: 46
Likes: 0
Received 0 Likes on 0 Posts
Default

well mine would kinda miss at full throttle at higher rpm. I changed plugs and its all good now. I would start there and make sure there is some good gas in there
Old 11-17-12, 10:21 PM
  #7  
frankdms
Pole Position
iTrader: (1)
 
frankdms's Avatar
 
Join Date: Jan 2010
Location: Colorado
Posts: 295
Likes: 0
Received 0 Likes on 0 Posts
Default

That "pop" sounds like what my 1j VVTi was doing when I had a minor ignition misfire at idle. I replaced the plugs with OE twin ground electrode type and new boots/wires, problem solved.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AzS13
Maintenance
0
12-16-16 07:13 AM
1JZCK
Performance & Maintenance
13
11-24-15 09:12 AM
shonuff53
Performance & Maintenance
13
04-06-11 07:39 AM
99navette
Performance & Maintenance
1
11-02-06 08:29 AM



Quick Reply: 1JZ VVT-i running problems...



All times are GMT -7. The time now is 03:34 PM.