Alrighty Fella's..., 1 more time

supramacist · 07-08-2007, 01:39 AM

Alright. I got my 91 up and running today. I let it idle and found 1 hose I missed a clamp on. I had to kill it to go and get some gas because I only had enough for 1 heat cycle.

Now, I came back and put the gas in and the thing cranks and sounds good.

But...., If I even bump the peddle it will stall out. And now it's start and slowly dies.

It seems like it may be getting too much air, but I am unskilled in this area.

Any comments or direction would be greatly appreciated.

Thanks Gents.

Supra2NR · 07-08-2007, 02:46 AM

How high can u rev it?
2k? Maybe the maf,
Or the idle air control hose is pinched or disconnected,
Try checking those first

supramacist · 07-08-2007, 03:59 AM

I can rev it to 3.5

When it comes down it catches at 12ish and idles a bit and craps out.
Also while it is reving it kind of snap crackle poppy. If you can follow that.

Edit: upon crank it'll rev just fine a side from the crackle.
It turned over first try and it sounds strong. It didn't sputter or cough.

SupraDupra · 07-08-2007, 08:46 AM

What happend before you got to the point you're at now? Did you swap any parts out? I would double check the throttle position sensor and the timing. Sounds like some simple thing is just a little off. Only about 1,000 "simple" things to check

supramacist · 07-08-2007, 05:00 PM

I know.

I just don't know where to start.
Fuel pressure regulator...., I think all you can do is replace it.

Maf....., I don't know jack about adjusting the thing.

Where I was at before this is the car has been down with a bhg and has recently been replaced. The machine work was done and all of the things like the starter and alternator are all new.

I'm kind of at a loss here. It started this morning and ran long ebough to get up to operating temp and then dies.

If I plug the maf up it kills it.

Do you guys think a need a new fuel pressure regulator or do ya think the problem lies in the maf.

plaaya69 · 07-08-2007, 05:58 PM

Do you have any codes? I also had the same problem with my JDM motor but I had three problems with it. They are

-the AFM was bad(code 31)
-the TPS was no good(code 41)
-the CPS was not installed right

supramacist · 07-08-2007, 06:39 PM

I pulled the diagnosis box and it's coated with some kind of shmaz and looks utterly filthy.

I went and picked up a new fuel pressure regulator. It's a mr. gasket brand that is adjustable. It has no vac line so I don't think it will work.
I'm not sure though.

I may have to hook it upelsewhere.

SupraDupra · 07-08-2007, 07:41 PM

Quote:

Originally Posted by supramacist

I pulled the diagnosis box and it's coated with some kind of shmaz and looks utterly filthy.

That's just grease to keep moisture off the contacts. Just pretend it's not even there and run your jumper wire like normal.

supramacist · 07-08-2007, 07:48 PM

Right on thank you.

supramacist · 07-08-2007, 07:58 PM

Can someone explain to me how the heck the maf just goes bad, or if it even does. I can see how a fuel pressure regulator can clog up if it sits long enough with gas in it. The gas will caramelize over time and plug it up.

But still the car will run until it's warm and the it'll then it will die, But if the maf gets hooked up in the interim of that time frame. The engine just says fuck it.

Also I'm sorry, I'm wound up and I don't want you guys to think I'm giving you attitude. If any of you guys took me as hostile I apologize.
I appreciate all you help.

You cats ROCK.

Does anyone possibley have a used maf sensor??? For a 91 model. I sure hate to spend 400 bucks on one.

07-08-2007, 01:39 AM	#1
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Alrighty Fella's..., 1 more time Alright. I got my 91 up and running today. I let it idle and found 1 hose I missed a clamp on. I had to kill it to go and get some gas because I only had enough for 1 heat cycle. Now, I came back and put the gas in and the thing cranks and sounds good. But...., If I even bump the peddle it will stall out. And now it's start and slowly dies. It seems like it may be getting too much air, but I am unskilled in this area. Any comments or direction would be greatly appreciated. Thanks Gents.

07-08-2007, 02:46 AM	#2
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	How high can u rev it? 2k? Maybe the maf, Or the idle air control hose is pinched or disconnected, Try checking those first __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

07-08-2007, 03:59 AM	#3
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I can rev it to 3.5 When it comes down it catches at 12ish and idles a bit and craps out. Also while it is reving it kind of snap crackle poppy. If you can follow that. Edit: upon crank it'll rev just fine a side from the crackle. It turned over first try and it sounds strong. It didn't sputter or cough. Last edited by supramacist; 07-08-2007 at 04:02 AM.

07-08-2007, 08:46 AM	#4
SupraDupra 3" Exhaust Join Date: Oct 2006 Location: Cleveland OH Posts: 129	What happend before you got to the point you're at now? Did you swap any parts out? I would double check the throttle position sensor and the timing. Sounds like some simple thing is just a little off. Only about 1,000 "simple" things to check __________________ 1988 Supra - N/A 5 speed 1974 'Cuda - 318 2001 Cherokee

07-08-2007, 05:58 PM	#6
plaaya69 12psi boost Join Date: Feb 2007 Location: Waukegan, IL Posts: 255	Do you have any codes? I also had the same problem with my JDM motor but I had three problems with it. They are -the AFM was bad(code 31) -the TPS was no good(code 41) -the CPS was not installed right __________________ 1987 Toyota Supra Turbo-burgundy exterior w/gray interior+1987 Toyota Supra(N/A) light brown top,dark brown bottom w/light brown interior.

07-08-2007, 05:00 PM	#5
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I know. I just don't know where to start. Fuel pressure regulator...., I think all you can do is replace it. Maf....., I don't know jack about adjusting the thing. Where I was at before this is the car has been down with a bhg and has recently been replaced. The machine work was done and all of the things like the starter and alternator are all new. I'm kind of at a loss here. It started this morning and ran long ebough to get up to operating temp and then dies. If I plug the maf up it kills it. Do you guys think a need a new fuel pressure regulator or do ya think the problem lies in the maf.

07-08-2007, 06:39 PM	#7
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I pulled the diagnosis box and it's coated with some kind of shmaz and looks utterly filthy. I went and picked up a new fuel pressure regulator. It's a mr. gasket brand that is adjustable. It has no vac line so I don't think it will work. I'm not sure though. I may have to hook it upelsewhere.

07-08-2007, 07:48 PM	#9
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Right on thank you.

07-08-2007, 07:58 PM	#10
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Can someone explain to me how the heck the maf just goes bad, or if it even does. I can see how a fuel pressure regulator can clog up if it sits long enough with gas in it. The gas will caramelize over time and plug it up. But still the car will run until it's warm and the it'll then it will die, But if the maf gets hooked up in the interim of that time frame. The engine just says fuck it. Also I'm sorry, I'm wound up and I don't want you guys to think I'm giving you attitude. If any of you guys took me as hostile I apologize. I appreciate all you help. You cats ROCK. Does anyone possibley have a used maf sensor??? For a 91 model. I sure hate to spend 400 bucks on one.

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