Beams swap runs

mr220v · 02-12-2007, 10:22 PM

If only for a few seconds at a time, it runs. It kinda acts like I have the wrong afm, but whatever, the main thing is that it is showing signs of life.

What was the problem? Insufficient ecu ground. Tightened a bolt, and everything popped up.

Ncturnal · 02-12-2007, 10:23 PM

Sweet man. That's great to hear. Congrats!

WFX · 02-15-2007, 01:58 AM

So hang on a sec you needed to ground the ECU for the car to start? Or ground the ECU to get other things working? Is grounding the ECU a pretty important thing I gather?

As I havnt really got my grounded at all to be honest well the ground wires are but the ECU itself no. Mine started up all fine with no problems so havnt really looked into grounding it properly do you think it would make a difference?

Cheers
Wayne

mr220v · 02-15-2007, 09:19 AM

The ecu doesn't ground through its case to the chasis. It grounds through pins e1, eo1, and eo2. These wires end up at one of the loops down by the alternator. My loop was simply not bolted on tightly enough.

Roman · 02-16-2007, 01:07 AM

Haha, I had the same friggen problem with mine, when trying to get it running.

mr220v · 02-16-2007, 10:47 AM

The grounding issue was a stupid mistake on my part. I've done too many harnesses not to know what needs to be done here. Troubleshooting for an hour every saturday also didn't help with a speedy resolution either.

puretone · 02-20-2007, 11:04 PM

LOL, now thats a real DOH!

if the ecu isnt grounded then the B+ & ground dont close the loop....

JDMsw20 · 02-21-2007, 11:51 PM

Here my red top Revving today open header(click pic below)

02-12-2007, 10:22 PM	#1 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	Beams swap runs If only for a few seconds at a time, it runs. It kinda acts like I have the wrong afm, but whatever, the main thing is that it is showing signs of life. What was the problem? Insufficient ecu ground. Tightened a bolt, and everything popped up.

02-12-2007, 10:23 PM	#2 (permalink)
Ncturnal Google Ron Paul Join Date: Feb 2005 Location: Atlanta, GA Posts: 7,021 Thanks: 93 Thanked 127 Times in 107 Posts Blog Entries: 7 My Google Map iTrader Rating: (33/100% )	Sweet man. That's great to hear. Congrats! __________________ Brian - My MR2Trader Ads - Click here for order or shipping status if you've bought something from me recently. Technical Questions - Please post them on the forums. Others who may have the same problem don't benefit from a PM exchange. If you wish to have my input I have no problem with a PM containing a link to a thread you have already posted.

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02-15-2007, 01:58 AM	#3 (permalink)
WFX Beams Owners Group Join Date: Jun 2006 Location: Perth, Western Australia Posts: 337 Thanks: 9 Thanked 13 Times in 10 Posts My Google Map iTrader Rating: (0/0% )	So hang on a sec you needed to ground the ECU for the car to start? Or ground the ECU to get other things working? Is grounding the ECU a pretty important thing I gather? As I havnt really got my grounded at all to be honest well the ground wires are but the ECU itself no. Mine started up all fine with no problems so havnt really looked into grounding it properly do you think it would make a difference? Cheers Wayne

02-15-2007, 09:19 AM	#4 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	The ecu doesn't ground through its case to the chasis. It grounds through pins e1, eo1, and eo2. These wires end up at one of the loops down by the alternator. My loop was simply not bolted on tightly enough.

02-16-2007, 01:07 AM	#5 (permalink)
Roman Beams OCD Support Group Join Date: Feb 2006 Location: Auckland, NZ Posts: 713 Thanks: 23 Thanked 49 Times in 30 Posts My Google Map iTrader Rating: (2/100% )	Haha, I had the same friggen problem with mine, when trying to get it running.

02-16-2007, 10:47 AM	#6 (permalink)
mr220v Beams Owners Group Join Date: Mar 2006 Posts: 1,791 Thanks: 13 Thanked 139 Times in 117 Posts iTrader Rating: (9/100% )	The grounding issue was a stupid mistake on my part. I've done too many harnesses not to know what needs to be done here. Troubleshooting for an hour every saturday also didn't help with a speedy resolution either.

02-20-2007, 11:04 PM	#7 (permalink)
puretone Beams Owners Group Join Date: Aug 2006 Location: Aruba, #1 BEAMS Engine on the Island Posts: 1,370 Thanks: 24 Thanked 46 Times in 45 Posts My Google Map iTrader Rating: (0/0% )	LOL, now thats a real DOH! if the ecu isnt grounded then the B+ & ground dont close the loop....

02-21-2007, 11:51 PM	#8 (permalink)
JDMsw20 Beams Owners Group Join Date: Mar 2005 Location: G-LTDMR2, NY Posts: 144 Thanks: 6 Thanked 9 Times in 6 Posts iTrader Rating: (0/0% )	Here my red top Revving today open header(click pic below)