ignition problem???

ratiugslinky · 04-25-2008, 07:23 AM

thanks but my engine is a 7mgte. that diagram is for a 7mge. does it matter?

cre · 04-25-2008, 02:33 PM

Take a look though the link I posted... it's got the info on both mixed throughout. Although, this circuit is the same from one to the next, just the locations of parts changes.

ddmcse · 04-25-2008, 03:56 PM

what is the condition of the wires connected to the cam position sensor ?

wires on 20+ year old supras get dried out and brittle

if you had a cold start injector issue it would still start but it wouldn't start on the first attempt maybe the second or third

it would be interesting to check if you are getting spark to the plugs when it won't start .

i had an issue like this and it was related to mangled wires going to the CPS

supramacist · 04-25-2008, 04:02 PM

I think..., so IMO. I thik the cold start injector has the probability of being something that just shucks or shucks very quickley.

I don't see it working half ass'd for too awful long at all.

But that's just my opinion.

cre · 04-25-2008, 04:09 PM

CPS is a good possibility as well. Have you checked for error codes? Typically bad CPS wiring will result in error codes such as 12, 13 or 14.

ratiugslinky · 04-26-2008, 05:32 PM

okay the cam position wires are coming out and are not covered well. the housing for the wires are coming off and one looks like its cut. is that the problem and how should i clean it up?

ratiugslinky · 04-26-2008, 07:42 PM

okay so i redid the plugs for the cps. i crimped the wires and connected them with male and female wire connectors not butt connectors. the car still wont start. i think it may be the fuel pump. when i tried starting it i saw the rpm guage bouncing a little and i heard the exhaust boggle a little. it did that a few times then it just stopped. what do you guys think it maybe? fuel pump? it seems that its getting spark thats why and the plugs were pretty clean.

supramacist · 04-27-2008, 03:49 PM

I don't think it's your fuel pump.

I have to work on my piece right now.

I'll read this again later and see if something different clicks for me.

ratiugslinky · 04-27-2008, 11:32 PM

alright thanks. also there isnt supposed to be oil around the spark plugs area is there?

supramacist · 04-27-2008, 11:58 PM

On your wiring you need to go to the local parts store and pick up some of that electrical heat wrap and macguyver those biotches. Flick ur bic bro.

No oil in the galley way. It's an oil free and coolant free zone. Try to keep it that way. Now you'll have to pull and clean all the plugs if there's any real oil in there.

04-25-2008, 03:56 PM	#3
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	what is the condition of the wires connected to the cam position sensor ? wires on 20+ year old supras get dried out and brittle if you had a cold start injector issue it would still start but it wouldn't start on the first attempt maybe the second or third it would be interesting to check if you are getting spark to the plugs when it won't start . i had an issue like this and it was related to mangled wires going to the CPS __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS

04-26-2008, 05:32 PM	#6
ratiugslinky Stock Join Date: Apr 2008 Location: hawaii Posts: 14 Blog Entries: 1	cps okay the cam position wires are coming out and are not covered well. the housing for the wires are coming off and one looks like its cut. is that the problem and how should i clean it up?

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04-25-2008, 07:23 AM	#1
ratiugslinky Stock Join Date: Apr 2008 Location: hawaii Posts: 14 Blog Entries: 1	thanks but my engine is a 7mgte. that diagram is for a 7mge. does it matter?

04-25-2008, 02:33 PM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Take a look though the link I posted... it's got the info on both mixed throughout. Although, this circuit is the same from one to the next, just the locations of parts changes.

04-25-2008, 04:02 PM	#4
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I think..., so IMO. I thik the cold start injector has the probability of being something that just shucks or shucks very quickley. I don't see it working half ass'd for too awful long at all. But that's just my opinion.

04-25-2008, 04:09 PM	#5
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	CPS is a good possibility as well. Have you checked for error codes? Typically bad CPS wiring will result in error codes such as 12, 13 or 14.

04-26-2008, 07:42 PM	#7
ratiugslinky Stock Join Date: Apr 2008 Location: hawaii Posts: 14 Blog Entries: 1	okay so i redid the plugs for the cps. i crimped the wires and connected them with male and female wire connectors not butt connectors. the car still wont start. i think it may be the fuel pump. when i tried starting it i saw the rpm guage bouncing a little and i heard the exhaust boggle a little. it did that a few times then it just stopped. what do you guys think it maybe? fuel pump? it seems that its getting spark thats why and the plugs were pretty clean.

04-27-2008, 03:49 PM	#8
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	I don't think it's your fuel pump. I have to work on my piece right now. I'll read this again later and see if something different clicks for me.

04-27-2008, 11:32 PM	#9
ratiugslinky Stock Join Date: Apr 2008 Location: hawaii Posts: 14 Blog Entries: 1	alright thanks. also there isnt supposed to be oil around the spark plugs area is there?

04-27-2008, 11:58 PM	#10
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	On your wiring you need to go to the local parts store and pick up some of that electrical heat wrap and macguyver those biotches. Flick ur bic bro. No oil in the galley way. It's an oil free and coolant free zone. Try to keep it that way. Now you'll have to pull and clean all the plugs if there's any real oil in there.