yet another bad dei brain

I used to love DEI but lately I think they are becoming more junk than the fleabay specials. Last year I had the brain in my car decide to stop working and it would no longer remote start (would forget tach signal daily and would have to be relearned). Now my wife's car is having problems that I've narrowed down to yet another bad brain. It started with her car just not starting even with the key. She would have to try it multiple times or even sometimes have to remote start it then use the key to take-over. I didn't think there was any way it was the brain but to play it safe I removed the starter kill and reconnected her factory starter wire. Viola problem solved.... so even though the alarm wasn't going off, the GWA was grounding (most likely shorting inside the brain) and causing the internal starter kill relay to activate. Within a week or so of fixing that, yet another issue that sounds like an internal shorting issue. She can remote start it, but as soon as the key goes into the ignition and gets turned on, all accessories shut down (heater, radio, lighting, etc). As soon as she hits the brakes it all comes back. Not really looking for help here since I already know the issue... just more of a rant than anything else. Time to put a Compustar in her car now too. The only thing that sucks is that her range was insanely far... hopefully I can duplicate it.Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

And my issue with DEI Kenny is tach learning on diesels. Even with direct injection or a 464 inductive tach, half the time I have to set them up as virtual tach AND YET when you program the tach it recognises it every time. Sympton:- R/S, starter grind for 4-5 seconds (with it programmed via the Bitwriter), runs for a further 4-5 seconds then cuts out. They always seem to work best when they're all hardwired with no data to worry about.

offroadzj but as soon as the key goes into the ignition and gets turned on, all accessories shut down (heater, radio, lighting, etc). As soon as she hits the brakes it all comes back. [/QUOTE wrote: Interesting symptom. I have been having the same thing happen to me with a Python 574 installed in my 92 Chevy 1/2 ton. Thought I was imagining it or something was going to hell in that old tru

Interesting symptom. I have been having the same thing happen to me with a Python 574 installed in my 92 Chevy 1/2 ton. Thought I was imagining it or something was going to hell in that old truck. Guess I'll switch the brain.

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An associate chucked a 5704 into an Audi A3 back in November. I've changed the DB-ALL TWICE now, still no R/S. Again with Smokeman, new brain over the weekend.

I love how the DEI problems are discussed more than anything in this particular forum. Sorry about your issues but obviously the forum doesn't lie about how awesome DEI is.I drink current, eat ohms, and bleed voltage

it seems atleast on the 4103s since they changed to the ones with the black buttons I've had nothing but tach issues. It programs fine works for a day then quits. I've been running mostly virtual tach lately and hoping for the best. I get a few random green button ones and they work great. May have to look into different systems soon getting tired of the tach come backsIf i Can't Install it    I Don't need it   Joe