Update: it wasn't the MAF either. Nor was it the fuel filter. It was the fuel pump, which finally died for good last week. Back on the road and feeling better.
This is from a thread I started, looking for input regarding my 99. Sounds like this part could be your problem, although I don't know for sure. Just passing it along.
I don't have any experience in this, but it seems to me that exceeding the weight limit by that much is a bad idea. With that much weight and that much height to increase drag, I wouldn't want to try it myself.
I'm having a similar issue, not sure it's EXACTLY the same, as I'm not getting codes either. I believe I'm up to six times that it has died now in a few weeks. It seems totally random, there is no rhyme or reason that I can find.
Thread: 99 LC dies randomly. Pls help.
Well I guess the EFI relay wasn't the problem. It died coming to a stop sign yesterday. I thought I could smell gas, just for a second or two. I suppose a new MAF will be my next purchase.
I had OBDMate up on my phone and I didn't see anything out of the ordinary, although my eyes weren't...
Do you by chance have a picture? I should be able to see it as I don't have a cover (PO had taken it off and I chucked it, I hate those things).
I've looked at everything that I can see to check for this, but maybe I missed it.
That picture basically looks like a Rorschach test to me, so I'm going to be no help other than a bump.
My 99 has a problem with the security system, and I don't know if it's stock or if some PO messed with it. I was planning on taking mine to a local stereo guy and see if he can tell me...
Yeah I might just do that if the EFI relay doesn't do it. My Bluetooth OBDII thing should be here tomorrow, so maybe I'll get around to figuring that out this weekend and be able to get some more information.
The throttle body is new-ish though (I don't know how many miles on it but it certainly looks new) and I would guess that the APPS and TPS are new as well. It doesn't seem to make sense that you would buy a new throttle body and reuse old sensors. Also, no codes at all and it seems to me from...