If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Hot idle speed oscillating
My 1990 Mitsubishi Eclipse (DSM 1G 2L non-turbo) is starts and idles cold fine, and runs fine warmed up. When warm and I put it in neutral (AT) the idle oscillates between 1800 and 2200 with about 1/2 second cycle time.
MAS was the first guess -- so I put a rebuilt mass airflow sensor assy in and same problem. Checked all the connections and vacuum - all OK. Also took the throttle assy apart and cleaned all - helped the running but still oscillating. Cleaned Idle air motor, checked voltages and resistance for all sensors and also voltages coming from the computer, and all OK. About out of ideas -- anyone have some thoughts on how to start troubleshooting this? Thanks in advance. Bob |
Ads |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
1.8T: Slowly oscillating temp gauge | Bert Hyman | VW water cooled | 4 | April 6th 11 02:41 PM |
Hot weather fast idle | cmgies | Mazda | 2 | July 9th 10 08:06 PM |
92 Accord Running HOT? Also sometimes IDLE BOUNCE... Thermostat?? | 85miles | Honda | 12 | March 1st 07 07:16 PM |
99 Explorer noise when at idle or under 1000 rpm when hot | SteveL | Ford Explorer | 1 | July 13th 05 03:07 PM |
95 GC Loredo shuts off @ idle in hot wheather | bkhawk27 | Jeep | 2 | June 17th 05 07:50 PM |