When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hey, new to LS Motors (swapped a 2010 5.3 into a Toyota Land Cruiser )
one of the two plugs into the engine control module had lost its top plastic cover. Without disconnecting the battery, I popped off the plug to tape it.
Now the engine turns over but does not start. Did I just blow its mind ?
Quite possibly. Most of the engine harness manufacturers caution against doing what you did. Do your injectors flash with NOID lights connected? This is why I keep a spare, configured PCM sitting on the shelf . . . cheap, convenient insurance.
Is this the kind of thing I can just unbolt the computer, and take it into the shop and have it tested, or do I have to tow the whole truck down ?
You should be able to pull the pcm out and bring it to your tuner and he will be able to tell you if it bricked or not. If it did, get a new one and have him load the tune on it
Not sure closing this thread will do anybody any good in the future. But it turns out there is something broken somewhere internal of the lever action. All four posts on the ECU side of the plug were in gaged. The connector would cinch down a little, but would “pop out” during the last little bit of lever travel. Though the lever finished where it should be, it did not get the last little bit of a suck down. As a result myplug was not completely seated.
A little of this & that, got the sucker completely seated and ......vroom, back in business
thanks to all who contributed their thoughts Removed the clamp after the lever locked into place. Note the plug is seated on the ECU Note how the top plug “stands off” the ECU, though the lever is in locked position.
05-25-2019, 04:46 PM
Am I looking at a tow back to the tuner’s ? 
