2006 LSJ engine per reduced.
10-24-2017, 10:08 PM
#1
2006 LSJ engine per reduced.
A friend called me today and asked if I had encountered this problem before. He got the car at his shop with engine power reduced message and the usual cels. The weird part is he already changed the throttle, pedal, and checked the intake for leaks. I told him to check the wiring on the throttle, which he will do tomorrow. I went to check the car my self and it has a map sensor bolted on to the head and is reading nothing. Literally just sitting on A bracket on the head and basically reads nothing but the air outside the engine. As far as I am aware the LSJ only has 2 map sensors, the SC inlet map and the tmap at the manifold correct? He said that he unplugged that 3rd map sensor and the car went to EPR and plugged it back in and stayed that way. The car is on GM stage 2 as well.
Has anyone had a similar issue? And is there really a third map going nowhere? I'm no LSJ expert but I worked on a few before and never noticed that sensor there. Any help appreciated
Has anyone had a similar issue? And is there really a third map going nowhere? I'm no LSJ expert but I worked on a few before and never noticed that sensor there. Any help appreciated
10-24-2017, 10:15 PM
#2
Senior Member
iTrader: (6)
That's the baro sensor.
Odd that it started acting up after he unplugged it but not after plugging it back in. He didn't accidentally swap the baro and map sensor connections (it can happen they're the same plug)
Odd that it started acting up after he unplugged it but not after plugging it back in. He didn't accidentally swap the baro and map sensor connections (it can happen they're the same plug)
10-25-2017, 02:18 AM
#3
I did notice the connector is the same. He said he had a GM tech come supposedly program the new pedal and throttle, and the "tech" unplugged it. He plugged them back in so maybe thats it. I have had dumber things cause problems before but that's one to check lol. Thanks will look out for that.
11-13-2017, 03:48 PM
#4
Plugs were on correct sensors and now has a new PCM and still doing the same thing. Weird thing is if you delete the cel and the car runs normal until you drive it over about 30 money or hit boost it goes back rep. It has new throttle new pedal and new PCM. I told my friend to tell the guy to sell it 😂
11-13-2017, 03:52 PM
#5
Same issue with my buddys. Drives fine until you boost in high rpms. Then pwr reduced. If we clear the code, he can do 3-4 pulls just fine but it will eventually throw again. We replaced the MAF, MAP, Baro, SCIP, throttle body, intake and supercharger gaskets. Next thing we are going to check is the harnesses.
11-15-2017, 11:02 AM
#7
New Member
Join Date: 11-15-17
Location: California
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
Having the same issue with my GM Staqe 2 with intake. Use to be intermittent, not any more. I've cleaned the throttle body and replace the lines to it. Replacing the fuel filter this weekend, its the original so its way over due. I guess if that doesn't work ill take to a shop.
11-18-2017, 03:50 AM
#8
Having the same issue with my GM Staqe 2 with intake. Use to be intermittent, not any more. I've cleaned the throttle body and replace the lines to it. Replacing the fuel filter this weekend, its the original so its way over due. I guess if that doesn't work ill take to a shop.