2006 LEXUS IS ENGINE COUGHING NOISE

  • Tiny
  • Spartan1326
  • 2006 LEXUS IS

Noises problem
2006 Lexus IS 6 cyl Two Wheel Drive Automatic 27468 miles

I recently installed a new air intake and I have noticed that if I push past oh. 4500 RPM it coughs or pops. This problem goes away once the engine heats up. What is the cause of this?

Do you
have the same problem?
Yes
No
Thursday, January 15th, 2009 AT 5:19 PM

3 Replies

  • Tiny
  • NYC.ECHO.LEXUS.TECH
  • MEMBER

ITS WHAT YOU CALL A LEAN MISFIRE , WHEN YOU START MODIFYING FUEL AND AIR COMPONENTS YOU MAY HAVE FALSE READINGS OR ECU MAY SEE FALSE READINGS DUE TO THE MODIFICATION
CAUSING ALL YOUR OPEN LOOP LEAN CONDITION
CONSIDER WARMING UP YOUR ENGINE AND READING YOUR FUEL TRIMS LONG, SHORT AND TOTAL
WATCH YOUR CAT TEMP WHEN YOU HEAR THE POP
NOISE YOU MAY SEE A RISE IN TEMP
LIKE A SPIKE THIS IS A SIGN OF DAMAGE TO YOUR EXHAUST AND EMISSION SYSTEMS

Was this
answer
helpful?
Yes
No
Tuesday, January 20th, 2009 AT 6:55 PM
  • Tiny
  • Spartan1326
  • MEMBER

Would re-setting the ECU fix this? If not, what would fix it?

Was this
answer
helpful?
Yes
No
Tuesday, January 20th, 2009 AT 8:33 PM
  • Tiny
  • NYC.ECHO.LEXUS.TECH
  • MEMBER

TUNING WOULD REQUIRE AFTERMARKET COMPONENTS AND ALL WARRANTIES WILL BE VOID.
I RECOMMEND PERFORMANCE SHOP OR LOOK ONLINE
FOR UPGRADES FOR YOUR INDUCTION, FEUL AND EXHAUST SYSTEM

Was this
answer
helpful?
Yes
No
Wednesday, January 21st, 2009 AT 6:14 PM

Please login or register to post a reply.

Other Engine Backfire Questions