fuel pump constantly runs and cop coils 1 & 4 get hot

[kevingst]

I usually don't post questions because typically a quick search answers my question. But I couldn't find anything on this. My car has been down for well over a year... don't remember how long anymore. In the mean time I've been having a 6 bolt 2.4 built. I've finally got everything in the car and hooked up. Here's the basic mod list.
99 Gsx
built g4cs
ported head with bc 280 cams, supertech dual springs
cop ignition
jm smim
q45 tb
ecmlink v3
fic 1050's
gm maft

I guess that's about all of the pertinent info. Here's the problems I'm having so far. I thought I was about ready to fire the car up. First I just did an ignition on check. The fuel pump came on, but it stayed on. ( "activate fuel pump" is not checked on link) It's not shutting off with just the key on. That lead to me finding a fuel leak, so I took care of that. Turned the key on and again the fuel pump just stays on, so I pulled the fuse for the fuel pump and went to try to set the tps. As I'm having trouble getting that set (If it's 0 idle, then it's not 100 wot. If it's set to 100 wot, then it's not at 0 for idle... whatever, I'll try to get that figured out later). As I'm leaning across the engine, something burns my arm. Turns out the coils 1 & 4 are hot. What would cause these things with just the key turned on? Also for anyone running the q45 tb, what did you do with your upper heater hose? My throttle pulley was hitting that causing me to not be able to go wot, for the time being I've just got the hose pulled off and tucked out of the way but I'd like to have heat during the winter.

The fuel pump rewire was done back before the car went out of commision and worked like it was supposed to then. The new stuff since last time it was running is the entire motor from valve cover to oil pan, the injectors, intake and exhaust manifold, throttle body, injectors, jayracing alternator relocation, ecu was upgraded to dsmlink v3, rre cas harness. I'll eventually go back and double check all my wiring stuff, but I was pretty thorough with all that and soldered all my connections.

So short version is: With just the key turned on fuel pump constantly runs and cop coils 1 & 4 get hot. Where should I start with this? Thanks for any help.

Kevin

 

[Deepnine]

Then start at the coils and at the fuelpump. It sounds like a short circuit.

Unplug the ecu, check if the problem is still there. ifit goes away, maybe your ecu is broken.

check the cables from the ignition and fuel pump.

 

[illeffekt vr-4]

This should help with adjusting your TPS: dsmlinktpsadjustment [ECMTuning - wiki]

If you're a member on dsmlink.com you'll find a lot of threads on how to install/setup the q45 throttle body, just use the search function.

The pump on my car also comes on when the key is turned to the ON position so I don't think anything is wrong.

I can't help you with the coils but I will check on my car to see if they feel hot or not.

 

[kevingst]

The ecu should be good. I sent it in to Tom at ecmtuning to rechip it for v3. He checked everything out and replaced a couple things and said it was good to go. I'm gonna recheck the wiring on the fuel pump rewire. It was good last time I had it running but maybe the relay went bad or a loose connection or something. The fuel pump IS supposed to come on when you turn the ignition on, but it's just supposed to come on, shoot some fuel for the startup, and then shut off. I don't remember it running continuously. Maybe someone else can verify that for me. I'll probably try to slap the stock coilpacks and the magnecors on it to see if that changes anything with the heating issue. I need to read the wires going to the coil connector to see why it's getting power with just the key being turned on. I need to look it up again, can't remember what voltages I'm supposed to be looking for and where.

 

[kevingst]

This is what ended up with that. The reason the car wouldn't turn over is because the starter was locked up. A couple smacks with a hammer and that was good to go. Once that was resolved the fuel pump quit constantly running. Don't know how the two relate... but whatever, that's all good now. Then, thanks to a great tech article write-up by jshuman [http://www.dsmtuners.com/forums/art...-coil-plug-wiring-install-pics-part-1-a.html], I realized that my ebay cop setup was wired up completely backwards by the seller. His wiring may work on some other dsm, but not a 2g with a 6 bolt and Dsmlink.