• ALL
• 444-544
• 120-130
• 1800
• 140-160
• 200
• 300
• 700
• 900
• S90-V90

Volvo RWD 700 Forum

INDEX FOR 3/2010(CURRENT) INDEX FOR 2/2009 700 INDEX INDEX (NO RELOAD) [<<]  [>>]

VIEW    READ ONLY    PRINT   SAVE   A    A  Idle problems AMM problems? 700 1991 posted by  someone claiming to be ibs740 on  Wed Feb 25 09:31 CST 2009 [RELATED] Hi, My 91 740 turbo wagon has been acting weird for a bit. I had a bad ECU (High HC @ idle) during an emmissions test. Swapped the ECU for a spare & the oxygen sensor & it passed. The oxygen sensor wasn't sweeping btwn 0.1-0.9 VDC. Just kind of hovered around 0.5 VDC. I actually think the sensor I swapped is OK. I have my Programa ECU back in now & problems continue. Persistant Lambda trim errors. I've had both errors lean & rich. Problems are high idle (1400rpm), popping exhaust @ idle, poor gas mileage. Starts & runs OK. Does a tiny diesel when the ignition is turned off (rich). Did the FAQ AMM test & tests OK. Runs real bad if disconnected. I have finally found my intermitant vacuum leak. # 3 intake runner. It finally leaked long enough to find. Water spray worked great to find leak. Will fix this weekend. My question is can a bad AMM cause damage to the hybrid circuit or other parts of the ECU? Mark this post as an answer to my question<- Use this feature to mark quality replies to your post. Select, copy to buffer, and paste anywhere: <a href="http://www.brickboard.com/RWD/volvo/1334006/740/760/780/idle_problems_amm.html">Idle problems AMM problems?</a>

[about brickboard ads]

THREADED

THREADED EXPANDED

FLAT

PRINT ALL

• Idle problems AMM problems? [700][1991]
  posted by  poolman  on Wed Feb 25 15:52 CST 2009 > V
  • Idle problems AMM problems? [700][1991]
    posted by  someone claiming to be ibs740  on Thu Feb 26 10:48 CST 2009 > V
    • Idle problems AMM problems? [700][1991]
      posted by  lucid ONLINE  on Thu Feb 26 11:39 CST 2009 > V
      • Idle problems AMM problems? [700][1991]
        posted by  someone claiming to be ibs740  on Thu Feb 26 20:52 CST 2009 > V
        • Idle problems AMM problems? [700][1991]
          posted by  lucid ONLINE  on Fri Feb 27 06:58 CST 2009 > V

©Jarrod Stenberg 1997-2007. All material except where indicated.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.