The G-Spot General discussion about the G Series;
G35 & G37, Coupes & Sedans

"Check Engine Soon" - but no Limp Mode?

Old 07-12-2019, 09:59 PM
Registered User
Thread Starter
Join Date: Jul 2019
Location: Columbia MO
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
G35 sedan RWD
"Check Engine Soon" - but no Limp Mode?

OK, so my '06 G35 sedan threw the dreaded P1759 & P1757 codes yesterday. Trans is clearly not functioning properly, took it to the shop today. The "Check Engine Soon" lamp is lit, but I don't think it's in Limp Mode. How can you tell if it's in Limp Mode? No other indicator lights on the dash except for the "Check Engine" and the usual. Thanks...
Old 07-13-2019, 12:02 AM
Registered User
Join Date: Feb 2018
Location: LA, Cali
Posts: 1,342
Received 128 Likes on 121 Posts
My car has never went into limp mode ever with the check engine light on. I think limp mode is a myth.
Old 07-13-2019, 12:10 AM
cleric670@gmail's Avatar
Join Date: May 2017
Location: Washington State
Posts: 6,970
Received 815 Likes on 749 Posts
Coupe 6MT Premium RAS
Only certain parameters will trigger limp mode, things like overheat or low oil or anything else that can damage the motor (loss of cam position, etc).

Those two codes are a 1st gear solenoid failure, probably the solenoid on the valve body gave up the ghost.

You will definitely know you're in limp mode because the engine won't rev above 2k and you can't drive more than 20mph.
Old 07-13-2019, 01:54 AM
Registered User
Join Date: Feb 2018
Location: LA, Cali
Posts: 1,342
Received 128 Likes on 121 Posts
Drop a couple viagras in the gas tank. Thatll fix your limp mode.
Related Topics
Thread Starter
Last Post
G35 Coupe V35 2003 - 07
08-29-2016 04:07 AM
Engine, Drivetrain & Forced-Induction
12-20-2013 02:58 PM
General Tech Questions
04-22-2013 03:57 PM
G35 Sedan V35 2003-06
06-28-2012 01:06 PM

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: "Check Engine Soon" - but no Limp Mode?

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: