chips in No Start..what now
04-21-2006, 10:19 PM
#1
Rennlist Member
Thread Starter
Join Date: Dec 2005
Location: Virginia
Posts: 102
Likes: 0
Received 0 Likes
on
0 Posts
chips in No Start..what now
Just put in my performance chips. Excited and ready to romp and...no start. I think this is an old forum probelm but my search turned up nothing. Anyone familiar with this? 86.5
04-21-2006, 10:41 PM
#3
Team Owner
what he said
04-22-2006, 12:23 AM
#5
Supercharged
Rennlist Member
Rennlist Member
Join Date: May 2002
Location: Back in Michigan - Full time!
Posts: 18,925
Likes: 0
Received 63 Likes
on
36 Posts
I was going to ask if you had disconnected the battery before putting in the new chips, but then thought that might be too obvious, but then again... D'oh! 
04-22-2006, 01:22 AM
#6
Race Car
When you turn the key you get absolutely no nothing?
It is possible that opening up the carpet to access the computer josteled the fuse/relay panel enough for a corroded connection or a partially failing relay to prevent a start.
I have experienced on a number of occasions absolutely nothing upon turning the ignition key. In some cases, a gentle tap of a relay and things were back to normal (for months).
Most recently, a fist to passenger floor board did the trick.
If a turned key does absolutely nothing, I think that you have a bad connection or a goofy relay.
I say this because I doubt that a bad ecu would prevent the starter from turning. Our computers aren't that smart are they?
Good luck.
It is possible that opening up the carpet to access the computer josteled the fuse/relay panel enough for a corroded connection or a partially failing relay to prevent a start.
I have experienced on a number of occasions absolutely nothing upon turning the ignition key. In some cases, a gentle tap of a relay and things were back to normal (for months).
Most recently, a fist to passenger floor board did the trick.
If a turned key does absolutely nothing, I think that you have a bad connection or a goofy relay.
I say this because I doubt that a bad ecu would prevent the starter from turning. Our computers aren't that smart are they?
Good luck.
04-22-2006, 03:00 AM
#7
Rennlist Member
Thread Starter
Join Date: Dec 2005
Location: Virginia
Posts: 102
Likes: 0
Received 0 Likes
on
0 Posts
Disconnected the battery, used a ground strap on the rist, was very careful, everything went nice and smooth. Car turns over just won't start. I thought the program needed time to boot up or something. Chips were NOT Authority! They were RPM chips. I'm ordering Authority chips tommorow. Why am I so hard headed.....
Trending Topics
04-22-2006, 06:07 AM
#8
Rennlist Member
Make sure you have the correct chip in each ECU (LH/EZK) Getting them in the wrong ECU won't damage anything.
Make sure you have the notch in the end of the EPROM facing the outside edge of the printed circuit board in each case.
Make sure you have the notch in the end of the EPROM facing the outside edge of the printed circuit board in each case.
04-22-2006, 10:27 AM
#9
Captain Obvious
Super User
Super User
I agree with John. Sounds like you have the chips installed incorrectly. I can see that you took all the recautions. I on the other hand did none and the car fired up. I did make sure that the chips were in the right location, facing the correct way.
04-22-2006, 11:48 AM
#10
Rennlist Member
The chips are very rugged. I'm always swappping EPROMs, changing over to the SharkTuner interface etc etc, and I've never had one die on me yet - or the LH or EZK at the EPROM intrerface.
04-22-2006, 12:16 PM
#11
Track Day
Join Date: Mar 2006
Location: Connecticut
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
I had a similiar problem with chips bought off ebay. Car started but ran terrible for a few seconds, then the engine locked. I pulled the plugs, and found two cylinders filled with gas. Put the old chips in, cleared the cylinders and after about 20 minutes of running the car had itself sorted out. In the future I will never buy chips anywhere but directly from autothority.
04-22-2006, 12:32 PM
#12
Captain Obvious
Super User
Super User
Mine are off e-bay too($75), had no problems with them and they are an excellent upgrade (~25hp).
John,
After a Eprom swaps, desn't it takes a bit of time fo the ECM to learn the new parameters? At least that's how it felt when I first did the swap.
John,
After a Eprom swaps, desn't it takes a bit of time fo the ECM to learn the new parameters? At least that's how it felt when I first did the swap.
04-22-2006, 02:05 PM
#15
Rennlist Member
John,
After a Eprom swaps, desn't it takes a bit of time fo the ECM to learn the new parameters? At least that's how it felt when I first did the swap.[/QUOTE]
>>>>>>>>>>>>>>>>>>
Yes, that is correct. The adaptation data (plus any stored fault codes) for the LH are stored in the SRAM chip on the LH board. When you disconnect the battery that data is lost. It is normally retained in the SRAM by a permanent 12v feed.
After a Eprom swaps, desn't it takes a bit of time fo the ECM to learn the new parameters? At least that's how it felt when I first did the swap.[/QUOTE]
>>>>>>>>>>>>>>>>>>
Yes, that is correct. The adaptation data (plus any stored fault codes) for the LH are stored in the SRAM chip on the LH board. When you disconnect the battery that data is lost. It is normally retained in the SRAM by a permanent 12v feed.