RX7Club.com


Go Back   RX7Club.com > Tech and Performance > Engine Management Forum > Haltech Forum
Register Forgot Password?

Welcome to RX7Club.com!
Welcome to RX7Club.com,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX7Club.com today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread Display Modes
Old 05-04-12, 10:44 AM   #1
Badluck is ME
5 Year Member
 
1NSIGHT's Avatar
 
Trader Score: (3)

Join Date: Sep 2008
Location: Norcross
Posts: 326
Help. Stranded!!

I was data logging on the highway. Just cruising. Car shuts down. Air and Coolant temp is flashing. It did not overheat. At all whatsoever. Last thing I did update the ecu with 1.10.4. I did that about 20mins ago and it was fine.

Im literally on the side of the road write now. im posting on my phone.
1NSIGHT is offline   Reply With Quote
Old 05-04-12, 11:45 AM   #2
Badluck is ME
5 Year Member
 
1NSIGHT's Avatar
 
Trader Score: (3)

Join Date: Sep 2008
Location: Norcross
Posts: 326
The ecu itself is getting hot. Somebody please give me some ideas.
1NSIGHT is offline   Reply With Quote
Old 05-04-12, 12:20 PM   #3
No Life.
 
Trader Score: (0)

Join Date: Sep 2009
Location: Venice, Florida
Posts: 824
florotory or florotary florotory
I'm not expert as I'm just installing my Haltech. But if the ecu is getting hot I'd say let it cool down and see of that fixes you prob. Also check your coolant and air temp sensor connection to see if they somehow came loose. The ecu getting hot is odd. It may have a saftey feat on it to keep from overheating
__________________
04 Subaru STI: Invidia DP,Apexi GT Spec exhaust, COBB SP w/ Dynotune, Defi boost gauge, K&N Intake
87 TII:
2003 Nissan 350z
2012 Honda CBR 600rr
2011 BMW 335i
florotory is offline   Reply With Quote
Old 05-04-12, 01:07 PM   #4
www.lms-efi.com
10 Year Member
 
C. Ludwig's Avatar
 
Trader Score: (27)

Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 4,529
Send a message via Yahoo to C. Ludwig
If it's hot, it will shut down. Can't figure how the flashing temp values would cause the issue though. What is the actual value displayed for the temps? Not sure what you have the alarm values set at for those sensors, but you will most likely see alarm conditions if the circuit goes open or shorts to ground.

I'd check to make sure your harness didn't rub on something and short to ground or if it was possibly melted by exhaust heat.

Do you get an RPM signal when cranking?
C. Ludwig is offline   Reply With Quote
Old 05-04-12, 01:09 PM   #5
Badluck is ME
5 Year Member
 
1NSIGHT's Avatar
 
Trader Score: (3)

Join Date: Sep 2008
Location: Norcross
Posts: 326
It started and I made it home. I think water may have gotten on the harness. but I really dont think thats the problem.

The values were for coolant and air were 248 and 212. they flashed as soon as the ecu connected. I was driving for about 15mins when it happened in the middle of the highway it just shut down. I let everything cool down and it ran like normal.

It did NOT give me rpm signal when cranking.

I shrink wrapped the harness a couple of days ago. And drove it to and from work last night with no issues.

Im gonna check again in a couple of hours and see if Im getting any anomalies again. Hopefully it was water that had gotten on the harness when I opened the hood. But in all honesty I dont think thats what happpend.
1NSIGHT is offline   Reply With Quote
Old 05-05-12, 04:37 AM   #6
No Life.
 
Trader Score: (0)

Join Date: Sep 2009
Location: Venice, Florida
Posts: 824
florotory or florotary florotory
Quote:
Originally Posted by 1NSIGHT View Post
It started and I made it home. I think water may have gotten on the harness. but I really dont think thats the problem.

The values were for coolant and air were 248 and 212. they flashed as soon as the ecu connected. I was driving for about 15mins when it happened in the middle of the highway it just shut down. I let everything cool down and it ran like normal.

It did NOT give me rpm signal when cranking.

I shrink wrapped the harness a couple of days ago. And drove it to and from work last night with no issues.

Im gonna check again in a couple of hours and see if Im getting any anomalies again. Hopefully it was water that had gotten on the harness when I opened the hood. But in all honesty I dont think thats what happpend.
Have you figured out what it was that cause it
__________________
04 Subaru STI: Invidia DP,Apexi GT Spec exhaust, COBB SP w/ Dynotune, Defi boost gauge, K&N Intake
87 TII:
2003 Nissan 350z
2012 Honda CBR 600rr
2011 BMW 335i
florotory is offline   Reply With Quote
Old 05-05-12, 02:43 PM   #7
Badluck is ME
5 Year Member
 
1NSIGHT's Avatar
 
Trader Score: (3)

Join Date: Sep 2008
Location: Norcross
Posts: 326
^^^^ Nope but it hasnt happened again.
1NSIGHT is offline   Reply With Quote
Old 05-05-12, 04:31 PM   #8
Turbo 6-Port
5 Year Member
 
Trader Score: (2)

Join Date: Mar 2008
Location: Southern Colo
Posts: 54
Quote:
Originally Posted by 1NSIGHT View Post
^^^^ Nope but it hasnt happened again.
My platinum 1000 did the same exact thing for no apparent reason. Car has run fine last summer and all winter. Would the upgrade to 1.10 software have anything to do with it?
bah2733 is offline   Reply With Quote
Old 05-06-12, 09:25 PM   #9
No Life.
5 Year Member
 
sleeper7's Avatar
 
Trader Score: (0)

Join Date: Aug 2006
Location: San Antonio TX/Okinawa Japan
Posts: 1,070
Mine also shut down in 4th gear during a 1/4 mile run. Was datalogging and that showed that the ecu did not turn off but all the channels went zero. Checked things over, found nothing, 10 minutes later the motor started and ran fine with no issues.
Only happened once to me.
__________________
changed my user name from chuck8313btsds in April 2007

chuck
sleeper7 is offline   Reply With Quote
Old 05-07-12, 02:56 PM   #10
Turbo 6-Port
5 Year Member
 
Trader Score: (2)

Join Date: Mar 2008
Location: Southern Colo
Posts: 54
I understand the hotter weather and maybe ECU's overheating. But it just seems weird that this many people are having the same problem.
bah2733 is offline   Reply With Quote
Old 05-11-12, 11:42 PM   #11
Badluck is ME
5 Year Member
 
1NSIGHT's Avatar
 
Trader Score: (3)

Join Date: Sep 2008
Location: Norcross
Posts: 326
Happened again.... kind of..... I was driving the car for a few minutes after having fixed a huge vacuum leak that kept me from (taking my 7 to formula drift in ATL) anyway, I came back from Formula Drift Determined to have my 7 running in the morning.

Long story short laptop plugged in took it out after fixing the leak, ran great; pulled into my neighborhood and it starts running terrible.

Common denominator is the ECU plugged into the laptop. Im gonna try and make it happen again and see whats up. That Update seems to be my issue probably. Ill undo the update once I try a couple more things first.
1NSIGHT is offline   Reply With Quote
Old 05-12-12, 12:44 AM   #12
talking head
 
bumpstart's Avatar
 
Trader Score: (0)

Join Date: Apr 2008
Location: Perth, WA, OZ
Posts: 2,519
be sure you all have the injector current settings correct for your setup to limit heat load on the ecu

PS

IIRC early haltech stuff should be setup according to what injector setup is in the secondaries, maybe mr ludwig can confirm
__________________
when the going is hard, don't retard, remember your lubrication
24 years of DIY rotary experience

Last edited by bumpstart; 05-12-12 at 12:48 AM. Reason: PS
bumpstart is online now   Reply With Quote
Old 05-12-12, 01:07 PM   #13
www.lms-efi.com
10 Year Member
 
C. Ludwig's Avatar
 
Trader Score: (27)

Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 4,529
Send a message via Yahoo to C. Ludwig
Quote:
Originally Posted by bumpstart View Post
be sure you all have the injector current settings correct for your setup to limit heat load on the ecu

PS

IIRC early haltech stuff should be setup according to what injector setup is in the secondaries, maybe mr ludwig can confirm

Believe he's using a Sprint ECU. No injector impedance setting.
C. Ludwig is offline   Reply With Quote
Old 05-12-12, 08:12 PM   #14
talking head
 
bumpstart's Avatar
 
Trader Score: (0)

Join Date: Apr 2008
Location: Perth, WA, OZ
Posts: 2,519
/\ then is he using the low ohm injectors without the resister block?
its a very obvious reason the ecu would run hot
__________________
when the going is hard, don't retard, remember your lubrication
24 years of DIY rotary experience
bumpstart is online now   Reply With Quote
Old 05-24-12, 12:03 PM   #15
No Life.
5 Year Member
 
sleeper7's Avatar
 
Trader Score: (0)

Join Date: Aug 2006
Location: San Antonio TX/Okinawa Japan
Posts: 1,070
Quote:
Originally Posted by C. Ludwig View Post
If it's hot, it will shut down. Can't figure how the flashing temp values would cause the issue though. What is the actual value displayed for the temps? Not sure what you have the alarm values set at for those sensors, but you will most likely see alarm conditions if the circuit goes open or shorts to ground.

I'd check to make sure your harness didn't rub on something and short to ground or if it was possibly melted by exhaust heat.

Do you get an RPM signal when cranking?
Is this a know for sure thing? So what makes the ecu get hot and shut down?
__________________
changed my user name from chuck8313btsds in April 2007

chuck
sleeper7 is offline   Reply With Quote
Old 05-24-12, 12:03 PM
RX7Club
Mazda RX7




Paid Advertisement


 
 
 
Reply

Tags
ecu, haltech, overheat

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


All times are GMT -5. The time now is 07:14 AM.
All content Copyright 2007 by Internet Brands, Inc.

Contacts