mk3 wont pass 40 mph??

tokis · 11-10-2007, 02:42 AM

i just bought a 1987 mk3 auto turbo. Car take off fine until it hits around 40mph, start bogging and struggling. My buddy says its a ECU problem, too much fuel maybe? cuz its blows out black smoke when I take off. plz help me I'm new to supras

Supra2NR · 11-10-2007, 03:32 AM

Quote:

Originally Posted by tokis

i just bought a 1987 mk3 auto turbo. Car take off fine until it hits around 40mph, start bogging and struggling. My buddy says its a ECU problem, too much fuel maybe? cuz its blows out black smoke when I take off. plz help me I'm new to supras

could be the regulator since you said it was blowing black smoke
have you checked the sparkplugs? coilpack
maybe sum of them are fouled and youre not burning the fuel anymore

jus a few thoughts

tokis · 11-10-2007, 04:11 AM

my car just had a full tune up

redmaro · 11-10-2007, 07:13 AM

Any check engine codes?

BTW the ECU should be one of the last things you check IMO.

tokis · 11-10-2007, 08:20 AM

yea got it checked. its not the right code

mrnickleye · 11-11-2007, 12:10 AM

Too rich running will cause the cat converter to fail. Perhaps you have a plugged exhaust, which will do what your car does.

11-10-2007, 02:42 AM	#1
tokis Stock Join Date: Nov 2007 Location: phoenix Posts: 19	mk3 wont pass 40 mph?? i just bought a 1987 mk3 auto turbo. Car take off fine until it hits around 40mph, start bogging and struggling. My buddy says its a ECU problem, too much fuel maybe? cuz its blows out black smoke when I take off. plz help me I'm new to supras

11-10-2007, 07:13 AM	#4
redmaro walbro fp Join Date: Mar 2006 Location: arizona Posts: 432	Any check engine codes? BTW the ECU should be one of the last things you check IMO. __________________ MK3, Auto, Turbo.

11-11-2007, 12:10 AM	#6
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	Too rich running will cause the cat converter to fail. Perhaps you have a plugged exhaust, which will do what your car does. __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.

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11-10-2007, 04:11 AM	#3
tokis Stock Join Date: Nov 2007 Location: phoenix Posts: 19	my car just had a full tune up

11-10-2007, 08:20 AM	#5
tokis Stock Join Date: Nov 2007 Location: phoenix Posts: 19	yea got it checked. its not the right code