Recent content by efacewin

How did you get your new diaphragm?

PS. My theory is that all of these standard replacements may have been sitting on a shelf since the 90s and the rubber parts are failing due to age. Sound plausible?

Thanks. I am very interested. I just got your response . Will try to check back regularly . If you can, send me a direct msg to help me see it immediately. Thx.

My first brake booster lasted for 275K miles and 25 years. 2 replacements have failed in the last 5K miles in 1 year. First replacement was new but of unknown origin. Second one came from England and billed as the best replacement. (While it lasted it seemed to work as well as the original). Any...

I’m pretty sure it is true that the tune number deals with the those adjustments differently for the manual. It looks like tune # 9630, 9644 and 9653 are all the manual transmission tunes. I am currently trying to determine if the corresponding EPROMs can be copied and duplicated.

Interesting. Unplugging the stepper motor (IAC) is a similar solution. It is the only way the ECU can directly adjust the idle speed.

As you probably know, some of those idle issues could be vacuum related. If you unplug your IAC (stepper motor) while it is running and leave it unplugged, any erratic idling is not related to the ECU. This is how I run mine except in the summer when I need to use the air conditioner. PS. it is...

I am learning as this thread progresses. One thing I am now convinced of is that setting the software switch from automatic to manual will not change the “tune level”. I am fairly convinced the 5-speed ECU needs an eprom that matches one of the manual tune levels. (Later ones than originally...

I am curious about what caused your idle issues. Was your ECU replaced or was it something else? Do you know the revision level of your ECU?

Thanks. I will try this.

Since it was from an ael truck, the eprom probably was after the early revision. I’m still surprised it didn’t have to have the transmission settings changed. Any chance they were updated when you installed it?

Could be, but there are clearly at least 2 ECU settings that indicate whether it is a manual or automatic. Also, I know there was an eprom update specifically to address issues with the 5-speed. Maybe yours has the update and mine doesn’t. Mine probably is also set for an automatic.

Thanks. Let me know if you think you can. I probably will want to leave the one I have installed and let you try to change another one. As noted earlier, there was a revision to the eprom specifically to address issues with the manual. Would like to make sure the one changed is at a high enough...

I am looking for an ECU for a manual transmission 1996 DI. I understand there was a recall replacement eprom to address idle issues. This is what I need.

Will call tomorrow. Thx.