LQ4 stuck in limp mode

[Yeller]

That's odd. was the harness new or is it a reworked harness?

[cmaje72]

Just went and disconnected coil packs, one by one. Only seems to be running on the coil packs from the driver side when it’s acting up

I had this!! Awesome when your towing your camper in traffic. I had to repin the 12v and ground in the main coil connector on both sides. Wiggle the wires and see if it cuts in and out.

[Grand_Wag_85]

Just went and disconnected coil packs, one by one. Only seems to be running on the coil packs from the driver side when it’s acting up

I had this!! Awesome when your towing your camper in traffic. I had to repin the 12v and ground in the main coil connector on both sides. Wiggle the wires and see if it cuts in and out.

Which wire off of the Coils is the ground? I know for the injectors it’s the pink wire.

Yeah, this is not a fun problem to have. I have Kept this truck on a really short short leash around town the last year. Took it camping over Fourth of July about 20 miles away. One of the roads going up the hill I did not think I was going to make it.

[Grand_Wag_85]

That's odd. was the harness new or is it a reworked harness?

Both. I ordered a cheap Chinesium harness from EBay and I’ve had to rework it a couple of times because it had the wrong connections on it. Come springtime I will be putting a brand new harness in the truck because at this point I think that’s gotta be where my issues are.

What do you recommend for a good hearness?

[Yeller]

I really don’t have a good recommendation at this point, I’ve always used reworked harnesses, but after the issues of the last few I will be going new on the rest going forward unless it is a very late model engine. At this point they are 20 years old and the connectors are tired. I had to replace several of the connectors on my last one to get everything happy.

[ProTouring442]

That's odd. was the harness new or is it a reworked harness?

Both. I ordered a cheap Chinesium harness from EBay and I’ve had to rework it a couple of times because it had the wrong connections on it. Come springtime I will be putting a brand new harness in the truck because at this point I think that’s gotta be where my issues are.

What do you recommend for a good hearness?

I've used both Speartech and PSI. Both worked okay, but I like the Speartech much better.

[Grand_Wag_85]

That's odd. was the harness new or is it a reworked harness?

Both. I ordered a cheap Chinesium harness from EBay and I’ve had to rework it a couple of times because it had the wrong connections on it. Come springtime I will be putting a brand new harness in the truck because at this point I think that’s gotta be where my issues are.

What do you recommend for a good hearness?

I've used both Speartech and PSI. Both worked okay, but I like the Speartech much better.

I will check them out. Thanks!