Alrighty Fella's..., 1 more time

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.

SupraDupra · 07-08-2007, 09:17 PM

I doubt anyone took you as hostile. We all know the frustration when you get so close but can't clear that last hurdle. Before you run out and buy a new MAF box I would recomend you get those diagnostic codes. Double check the vaccume lines for leaks ,check that your timing belt in installed to correct tollerance ,and the distributor is properly set.

07-08-2007, 05:58 PM	#2
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, 09:17 PM	#7
SupraDupra 3" Exhaust Join Date: Oct 2006 Location: Cleveland OH Posts: 129	I doubt anyone took you as hostile. We all know the frustration when you get so close but can't clear that last hurdle. Before you run out and buy a new MAF box I would recomend you get those diagnostic codes. Double check the vaccume lines for leaks ,check that your timing belt in installed to correct tollerance ,and the distributor is properly set. __________________ 1988 Supra - N/A 5 speed 1974 'Cuda - 318 2001 Cherokee

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Haha.....Read these Emails about SUPRAS FOR SALE	Metalluthier	Non-Generation Specific Questions	54	04-25-2011 11:51 PM
Supra time?	furia	MKIII Supra	11	08-28-2007 01:19 AM
One more time, my air removal method.	Monkey	Non-Generation Specific Questions	2	04-20-2007 02:09 AM
0-60 time	f00g00	MKIII Supra	16	08-09-2005 05:53 PM

07-08-2007, 05:00 PM	#1
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	#3
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	#5
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	#6
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.