Starting problems

mr.w · 03-18-2007, 12:13 PM

It doesn't look to bad to get too, just under the manifold. As for the hoses they have been all replaced when the head gasket was done. I'm going to try to check it out monday and I'll tell you what happens when I test it.

IHateHacks · 03-18-2007, 02:26 PM

Remember, there are 2 VSV's on MK3 supras. One is for the EGR valve and when standing on the driver side, looking at the intake manifold, its the one on the right, you can actually see that one. That one bolts to where the upper intake manifold and lower intake manifold meet. MK3's have a two piece intake manifold, if you did know that already. The one for the FPU is the one on the left and you can not see it unless the upper intake manifold is off. It is bolted to the lower intake manifold, where the intake manifold bolts to the head. Unbolting it is one thing, trying to disconnect the connector is the hard part.

SideWinderGX · 03-18-2007, 04:15 PM

i should probably check my plugs....car wouldnt start yesterday (really cold, but its started in similar weather) and started today on the second try.

spark plugs are probably it though, thats my guess. (to stay on topic lol =X)

Kckazdude · 03-18-2007, 05:06 PM

I would pass on testing that VSV for now and check the easier items off the list first. VSV are very simple in their operation and as such rarely fail. A more common problem to your slow start/rough idle when first started is a leaky cold start injector. It would be the first thing I eliminated off the short list for cause.

mr.w · 03-19-2007, 12:52 AM

Well thanks for the heads up on the 2 different VSVs I didn't know about that. I might not check that vsv if its under the manifold thats to much work for a minor problem. For now I'm just going to let the problem go.

IHateHacks · 03-19-2007, 01:58 AM

No problem. I just posted how to test the VSV because you mentioned it. I really have no clue what your problem could be.

mr.w · 03-19-2007, 03:01 AM

Yeah I read how to test on alldata because we have that at school but it failed to mention there was another VSV. The VSV I was going to check was to the EGR so that would have been useless to me. so that saved me some time. The car runs great for now just occasionaly starts up a little rough. I'm going to focus on getting the blinker and marker light fixed then maybe check the VSV when I have some time.

03-18-2007, 04:15 PM	#3
SideWinderGX 3" Exhaust Join Date: Feb 2007 Location: Syracuse, NY Posts: 203	i should probably check my plugs....car wouldnt start yesterday (really cold, but its started in similar weather) and started today on the second try. spark plugs are probably it though, thats my guess. (to stay on topic lol =X) __________________ my car: 1987 brownish Toyota Supra Turbo, automatic 7MGTE engine with ~100k miles on it.

03-18-2007, 05:06 PM	#4
Kckazdude Stock Join Date: Mar 2007 Location: Memphis, TN Posts: 4	I would pass on testing that VSV for now and check the easier items off the list first. VSV are very simple in their operation and as such rarely fail. A more common problem to your slow start/rough idle when first started is a leaky cold start injector. It would be the first thing I eliminated off the short list for cause. __________________ '88 Supra, N/A, Auto.

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03-18-2007, 12:13 PM	#1
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	It doesn't look to bad to get too, just under the manifold. As for the hoses they have been all replaced when the head gasket was done. I'm going to try to check it out monday and I'll tell you what happens when I test it.

03-18-2007, 02:26 PM	#2
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Remember, there are 2 VSV's on MK3 supras. One is for the EGR valve and when standing on the driver side, looking at the intake manifold, its the one on the right, you can actually see that one. That one bolts to where the upper intake manifold and lower intake manifold meet. MK3's have a two piece intake manifold, if you did know that already. The one for the FPU is the one on the left and you can not see it unless the upper intake manifold is off. It is bolted to the lower intake manifold, where the intake manifold bolts to the head. Unbolting it is one thing, trying to disconnect the connector is the hard part.

03-19-2007, 12:52 AM	#5
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	Well thanks for the heads up on the 2 different VSVs I didn't know about that. I might not check that vsv if its under the manifold thats to much work for a minor problem. For now I'm just going to let the problem go.

03-19-2007, 01:58 AM	#6
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	No problem. I just posted how to test the VSV because you mentioned it. I really have no clue what your problem could be.

03-19-2007, 03:01 AM	#7
mr.w 3" Exhaust Join Date: Nov 2006 Location: Cleveland, Ohio Posts: 70	Yeah I read how to test on alldata because we have that at school but it failed to mention there was another VSV. The VSV I was going to check was to the EGR so that would have been useless to me. so that saved me some time. The car runs great for now just occasionaly starts up a little rough. I'm going to focus on getting the blinker and marker light fixed then maybe check the VSV when I have some time.