trouble codes & exhaust brake - Diesel Forum

ovrcr · 12-22-2005, 02:40 PM

diy exhaust brake works well on '02 f350, but ses is triggered...dtc from odo shows d027 and d262, all systems seem to work okay...any thoughts?
Mike

Casey_1 · 12-22-2005, 09:57 PM

You need to get the codes that are stored in the PCM. The odo trick won't do that. Those codes don't mean anything in relation to the SES light.

ovrcr · 12-26-2005, 12:06 PM

thanx for the info, i didn't realize the odo codes were no good!! cel has extinguished itself, stll no problems...while i was testing the ebpv brake, i put a load against it with brake engaged...i figure i probably induced a high back-pressure sensor to trip...my bad!! all is well...

lebeouflimousin · 12-26-2005, 08:48 PM

What odo trick is this your talking about?

PerryB · 12-27-2005, 12:07 AM

Its not uncommon to get a SES light when using an exhaust brake. When you say its a DIY I'm guessing you're using the factory warmup valve. I also (had) an '02 with such a system and it would usually,but not always, turn the light on. After several starts and stops without using the brake the light will go out. I just learned to ignore it- as long as I knew it was from brake usage. Perry

Westro · 12-27-2005, 12:34 PM

I assume that you are using the Exhaust Backpressure warm up value? I have mine disabled and would like to use it as an exhaust brake. Does it work well for you? I was thinking that I would buy the product from spdiesel.com to keep the sensor happy.

pt4557 · 01-09-2006, 07:57 PM

I have an exhaust brake made by Western Diesel I installed in June 2001. I pull in the mountains every summer and it works great. To be effective you need to either buy one that locks the torque convertor or wire a TC lockup switch like I did. I don't think Western Diesel is around anymore. I forgot to mention this brake uses the EBPV.

ovrcr · 01-14-2006, 10:37 AM

observations: with auto tranny, my tc stays locked ok for brake to work in effective range (2k-3k rpm), efficiency drops off at lower r's. cel does reset after a few non-uses..odo trick: hold odo reset button in while inserting key, turn key on, odo will soon begin display of various functions (do a search)...I only use this brake on 6% or greater grades with 10-12k 5th, works great to hold speed without constant brake applications...od off, brake on, nice easy descent... would do it again in a heartbeat! oh, yeah, truck warms up quicker when engaged...

Mike