1988 Supra turbo with serious issues HELP!

chrish6323 · 09-25-2006, 05:48 AM

I recently purchased a mkiii 7mgte and I can't figure out what is going on. Every time the turbo kicks in (any boost at all) the car spits and spudders and floods it self out BAD. No power what-so-ever. Serious black smoke out the exhaust. I replaced the coolant temp sensor the plugs wires and 02 sensor, with no luck at all. As long as the car is not under boost is runs great. Fires right up and purrs. I'm getting really tired of cleaning all the Carbon build up off the rear end, PLEASE HELP!

mizuboi · 09-25-2006, 09:13 AM

Quote:

Originally Posted by chrish6323

I recently purchased a mkiii 7mgte and I can't figure out what is going on. Every time the turbo kicks in (any boost at all) the car spits and spudders and floods it self out BAD. No power what-so-ever. Serious black smoke out the exhaust. I replaced the coolant temp sensor the plugs wires and 02 sensor, with no luck at all. As long as the car is not under boost is runs great. Fires right up and purrs. I'm getting really tired of cleaning all the Carbon build up off the rear end, PLEASE HELP!

i would say you might have a boost leak somewhere try checking that check your hoses for any cracks or bulging and maybe you have bad injectors or yhour amf is bad who kows but check those things out if that helps at all

justin1642 · 09-25-2006, 03:31 PM

check the big hose to the bottom of the turbo i blew that off and the car wouldn't go. no power and just stalled. so check that.

chrish6323 · 09-26-2006, 02:51 AM

Its was the bottom intercooler line going to the turbo. I fixed that and now a huge whitish puff of smoke gets blown out when the blow off valve releases. Any ideas? Head gasket?

suprra_girl · 09-26-2006, 10:02 AM

how is your PCV plumbed?
got an aftermarket catch can?

09-25-2006, 05:48 AM	#1
chrish6323 Stock Join Date: Sep 2006 Location: Washinton Posts: 9	1988 Supra turbo with serious issues HELP! I recently purchased a mkiii 7mgte and I can't figure out what is going on. Every time the turbo kicks in (any boost at all) the car spits and spudders and floods it self out BAD. No power what-so-ever. Serious black smoke out the exhaust. I replaced the coolant temp sensor the plugs wires and 02 sensor, with no luck at all. As long as the car is not under boost is runs great. Fires right up and purrs. I'm getting really tired of cleaning all the Carbon build up off the rear end, PLEASE HELP!

09-25-2006, 03:31 PM	#3
justin1642 3" Exhaust Join Date: Mar 2006 Location: Michigan Posts: 213	check the big hose to the bottom of the turbo i blew that off and the car wouldn't go. no power and just stalled. so check that. __________________

09-26-2006, 02:51 AM	#4
chrish6323 Stock Join Date: Sep 2006 Location: Washinton Posts: 9	Thanks Its was the bottom intercooler line going to the turbo. I fixed that and now a huge whitish puff of smoke gets blown out when the blow off valve releases. Any ideas? Head gasket?

09-26-2006, 10:02 AM	#5
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	how is your PCV plumbed? got an aftermarket catch can? __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

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