SR DET Power loss when Hot

[Ess14]

I've been searching for a while on this topic, and it seems like its not uncommon. I couldn't find a really good example besides this thread: http://www.zilvia.net/f/showthread.php?t=61752

When I first get going, my SR runs great, spools quick and pulls fast. After driving for ~20 mins, alot of power is lost. The car feels like it's trying harder and going slower. The turbo sounds like it spools the same but doesn't kick as fast. It's extremely noticable from a dead stop after 30 mins of driving, my accelleration is nothing like it is when I first get driving.
I'm running S13 blacktop in a S14 with a Greddy IC kit, Apexi N1, SAFC-ii, profec b spec-ii BC, stock boost right now.

Visually, my vaccuum lines look fine, but I don't have a vaccuum line guide as reference. My car was at the shop a couple months ago for some obvious exhaust leaks, and they were fixed and its been running a lot better. But there is this problem...

I don't know how to check my timing, it could possibly be that I suppose, if I take it in what would I want the timing set @?
What do you guys think?

[Ess14]

Has no one had a similar experience? I think it gets worse the harder I beat the motor, and thus, the hotter it gets.

[240trainee]

It's not overheating is it? I would assume not, but I figured I would check. Whats the condition on your radiator/ waterpump/tstat?

[240trainee]

Oh, and i noticed that you are in MD, anywhere around b-more?

http://www.ma-motorsports.com/

take it here, these guys know their shit.

[Ess14]

Bout 40-45 outside of B-more. It's not overheating, what do you mean by condition on my rad/waterpump/tstat? I've got a koyo radiator, and I assume that nothing is malfunctioning, mm thats about all I can say.

[broken240sx]

Pull any codes from the ECU?

[Ess14]

Pull any codes from the ECU?

Actually. I have another thread up about my ECU, I was trying to pull codes but I found out it doesn't have an LED for diagnostics. It's an E5 ECU. No one has responded to my final question of "how then, should I pull codes from my ECU if it doesn't have an LED?". I don't have a friend with a 62 ECU.

The thread is http://www.zilvia.net/f//showthread.php?t=136938 if you wanted to take a look.

So the answer to your question is, I'm trying :ugh:

[garbury]

you can solder in an led light to your ecu. Mine was missing one and I had the dude at an electronics shop put one in for me. Works great!

[MR2Sideways]

I have had a similar problem with my MR2 Turbo. It feels great for about 30 mins then goes to crap. How is your fuel consumption? I know my problem is that I am running rich. Another thing to check is your CAT's if you are running any. Hope this helps.

-Joe

[Ess14]

Garbury, I don't believe the E5 was made to have a light, in which case I wouldn't know where to solder it in... If your ECU had a previous light that was ripped off, then yes, a new one could be soldered in it's place - but I don't know about the E5 in that regard.
MR2Sideways, I am using an SAFC-II and I think I am running rich aswell. I just decided I'm going to see if I can alter the fuel tables bit by bit in order to fix that. However, on the drive home I added fuel % at about 3000-4000 rpms, and it seemed to allieviate some of the problems. I say some, it still runs much better when it's cold.

What do you mean check my CAT -- See if it's clogged?

[broken240sx]

Does the ECU have the little dial that puts it into diagnostic mode? because my CEL (dash) flashes the same as the light on the ECU, I just watch my dash to figure the codes

[Ess14]

Yes the ECU has a dial to put it into diagnostic mode. No my CEL doesn't blink when I attempt to put it into diagnostic mode. Nothing does.

[cotbu]

On the 62 ecu the pin for the fault code lamp is 24 (I know you have an E5), wire in an led test it out and while your there wire up your consult port up along with the check engine light

[Ess14]

On the 62 ecu the pin for the fault code lamp is 24 (I know you have an E5), wire in an led test it out and while your there wire up your consult port up along with the check engine light

Your saying wire in an LED at pin 24 on the E5 ECU? So they're the same pin on the 62 and E5? It seems like that wire is worthless for the cars sake if nothing blinks as a diagnostic tool.

I'm not sure I fully understand what you said, please elaborate.

Thanks

[cotbu]

What i'm saying is, the wiring job on your car is at best amateur.

Did you do the wiring for the engine? Does the check engine light come on when you turn the key on? Is the consult port wired up?
If your check engine light comes on, I got nothing...
If the consult port is hooked up get a code reader..

That wire pin24 may not be hooked up!!! Or for the E5 ecu it may do nothing!!!

[Ess14]

What i'm saying is, the wiring job on your car is at best amateur.

Did you do the wiring for the engine? Does the check engine light come on when you turn the key on? Is the consult port wired up?
If your check engine light comes on, I got nothing...
If the consult port is hooked up get a code reader..

That wire pin24 may not be hooked up!!! Or for the E5 ecu it may do nothing!!!
Didn't do the wiring for the engine
The CEL does not come on when I turn the key on
is the consult port a plug by the ECU for diagnostics and such? I wouldn't know what it's supposed to look like. Is there a code reader I could use, if it is wired up, that is relatively inexpensive?

It might be my stupidity, but I never fully understood what you're talking about regarding pin 24. I don't know if pin 24 is hooked up or not, and if I have to hook a pin up to the ECU and then wire a led to that? Thanks for the help, that was just unclarified.

[cotbu]

This is getting of topic, but... the consult wires are green they should be by the ecu if they were cut from the SR dash connector plug at the end of the harness

the consult port is by the fuse box, drivers kick panel.
get a continuity tester and find the location of the loose green wires and lable them as you find their location on the plug. For the check engine light, which is a red wire, I use a test light with a AA battery connected, Car should be off and battery disconnected.

http://www.plmsdevelopments.com/images/consult_pinout.jpg

[!Zar!]

Time for a new coolant temp sensor. Check that.

You check your IC piping?

Worst case could be fairly low compression. Leakdown test.