[MBZ] 260E Injection
Calling all gurus, calling all gurus. Patient:- '89 260E. Problem:- starts up fine and runs well. At about 40C the throttle starts to be unresponsive at more than 1/4 and when warmed up, 95C, runs OK. If the car is then stopped for approx. 1/2 to 1 hour, on re-start the car will start to stumble for about 15-20 seconds and will not accelerate, then almost as if a switch was closed the car then accel. normally. My tired old brain can only come up with a couple of ideas. 1. The cold start injector is activated then shuts off. 2. there are one or more injectors dribbling fuel after the car is shut off. Any thoughts? Fred Moir Lynn MA 85 300TD 87 190DT White, Bent 87 190DT Blue, Almost there. Luke's 260E Problem Child. Gimmee diesels I say! Gimmee diesels! ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 260E Injection
Well, now. First, check the OVP, if it's out, it will run funny. Check the idle mixture, and also (first) for vacuum leaks --we just replaced the idle control valve hoses and the boot between the air meter horn and the throttle body. Squirt some brake parts cleaner over the idle control valve hoses and the boot -- if the idle changes, replace them, and replace the injector seals AND the o-rings on the sleeve the injector fits in -- they all are bad if any are bad. Vacuum leaks will drive you nuts on that car, as the computer controller won't set the check engine light when the mixture goes out of control. If you have occasional stalling when coming to a stop and/or throttle lag, suspect a serious vacuum leak. The warm start problem is quite likely a leaking accumulator (will also cause hard starts in really hot weather with the engine hot) -- you need to have the pressure checked, it should be 3 bar with the pump on and something like 2 bar indefinitely with the pump off. Peter ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] 260E Injection
Replace the Fuel accumulator .A lot of strange symptoms will be gone including hot start stumbles. Check for vacuum leaks as Peter as suggested. Finally suggest Check and replace the throttle position sensor on the front of the fuel unit. mak - Original Message - From: Frederick W Moir [EMAIL PROTECTED] To: Mercedes mercedes@okiebenz.com Sent: Friday, April 11, 2008 4:35 AM Subject: [MBZ] 260E Injection Calling all gurus, calling all gurus. Patient:- '89 260E. Problem:- starts up fine and runs well. At about 40C the throttle starts to be unresponsive at more than 1/4 and when warmed up, 95C, runs OK. If the car is then stopped for approx. 1/2 to 1 hour, on re-start the car will start to stumble for about 15-20 seconds and will not accelerate, then almost as if a switch was closed the car then accel. normally. My tired old brain can only come up with a couple of ideas. 1. The cold start injector is activated then shuts off. 2. there are one or more injectors dribbling fuel after the car is shut off. Any thoughts? Fred Moir Lynn MA 85 300TD 87 190DT White, Bent 87 190DT Blue, Almost there. Luke's 260E Problem Child. Gimmee diesels I say! Gimmee diesels! ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG. Version: 7.5.519 / Virus Database: 269.22.10/1366 - Release Date: 4/8/2008 5:03 PM ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
