Engine chugging while cruising on freeway
Thread Starter
Driver School Candidate
Joined: Jan 2008
Posts: 16
Likes: 1
From: Wisconsin
Engine chugging while cruising on freeway
Newby on the forum here...
My '99 RX300 w 89k miles will start chugging if I get on the freeway and consitently go at the same speed for a period of time. For example, if I go 55 mph for 3-5 minutes. Once the chugging starts, it will stop if I give it slightly more or less gas. Also it does NOT do this on surface streets as I'm continually varying speed and throttle.
Does this sound like an A/F ratio issue?..maybe A/F sensor? The CEL is lit.
Advice much appreciated!
My '99 RX300 w 89k miles will start chugging if I get on the freeway and consitently go at the same speed for a period of time. For example, if I go 55 mph for 3-5 minutes. Once the chugging starts, it will stop if I give it slightly more or less gas. Also it does NOT do this on surface streets as I'm continually varying speed and throttle.
Does this sound like an A/F ratio issue?..maybe A/F sensor? The CEL is lit.
Advice much appreciated!
CL Community Team
Joined: Apr 2001
Posts: 16,524
Likes: 1,375
From: Austin, TX
If the CEL is lit, please have it read by OBDII (folks typically get it dumped by going to AutoZone). Remember do not reset the CEL by disconnecting the battery as it will wipe out (some/most/all) codes.
Salim.
Salim.
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