86' owner with a big problem

heavenlydeath · 09-24-2009, 09:35 PM

Hi I just got my first mr2 last friday for cheap and it is in good shape (other than the dreadded wheel well rust) and i figured it needed some engine work before it would run properly. First off it had an alternator problem that was noticeable. replaced it and was taking it home and it acted like it had hardly any power at all. while driving it home the day i got it the car started to overheat (alot) and it had melted the sparkplug wires to the plugs and the distributor melted. got them replaced and the car still seems to have the same problem. you guys think it might be the o2 sensor? only the manifold header and a few inches of the exhaust is there (the guy cut off the catalytic converter off) or maybe the intake system?

silver-mk1-mr2 · 09-24-2009, 09:44 PM

thats messed up but welcome and heat rises and goes into the engine bay and could be messing with your sensors. i would sugest putting enough exaust to get it out the back but lets see what others think

heavenlydeath · 09-25-2009, 01:01 AM

thanks and is ECT a stock item on all mk1 automatics?

mr2_jake · 09-25-2009, 12:02 PM

Yes, the ECT is. My 2 was originally an auto, but I swapped that s*** out as quickly as possible

! ECT = Electronic ControlTransmission. It controls the timing of the shift points and torque converter lock-up. Basically like "sport" mode on newer puss-o-matics..

heavenlydeath · 09-25-2009, 01:17 PM

lol thanks think i figured out the problem. time is off by 10 degrees wish me luck guys

silver-mk1-mr2 · 09-25-2009, 02:46 PM

well thats good to know its nothing realy bad haha

heavenlydeath · 09-25-2009, 09:02 PM

lol... little improvement but it still has some problems.... got a temporary glass pack for some compression until i can get it fixed all the way. you guys think it might be the fuel filter and or pump?

mr2_jake · 09-25-2009, 09:22 PM

If you have access to one, hook up a fuel pressure gauge. Harbor freight sells cheapo fuel pressure test kits. Should read somewhere between

35-45 psi

(someone correct me if I'm wrong).

heavenlydeath · 09-26-2009, 10:43 AM

i dunno but im gettin a parts car tommorow. i might actually just plop my engine in that one since its 5 speed and the chassis life is about 140k miles. needs a left front fender and rear bumper

Maticuno · 09-26-2009, 12:19 PM

Keep your eye on the oil pressure and listen for any rod knocks from the engine. Sometimes people retard the timing to hide the sound of a rod knocking.

heavenlydeath · 09-26-2009, 09:44 PM

no knock and pressure on oil is fine thanks for the intel anyway

heavenlydeath · 09-29-2009, 07:03 PM

ahaha..... found my problem today when i cleaned the injectors. thanks for the help guys

09-24-2009, 09:35 PM	#1 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	86' owner with a big problem Hi I just got my first mr2 last friday for cheap and it is in good shape (other than the dreadded wheel well rust) and i figured it needed some engine work before it would run properly. First off it had an alternator problem that was noticeable. replaced it and was taking it home and it acted like it had hardly any power at all. while driving it home the day i got it the car started to overheat (alot) and it had melted the sparkplug wires to the plugs and the distributor melted. got them replaced and the car still seems to have the same problem. you guys think it might be the o2 sensor? only the manifold header and a few inches of the exhaust is there (the guy cut off the catalytic converter off) or maybe the intake system?

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09-24-2009, 09:44 PM	#2 (permalink)
silver-mk1-mr2 No Skills Join Date: Jul 2009 Location: st.louis Posts: 19 Thanks: 4 Thanked 0 Times in 0 Posts Blog Entries: 1 iTrader Rating: (0/0% )	thats messed up but welcome and heat rises and goes into the engine bay and could be messing with your sensors. i would sugest putting enough exaust to get it out the back but lets see what others think

09-25-2009, 01:01 AM	#3 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	thanks and is ECT a stock item on all mk1 automatics?

09-25-2009, 12:02 PM	#4 (permalink)
mr2_jake Many skills... Join Date: Sep 2009 Location: Billings, MT Posts: 83 Thanks: 0 Thanked 7 Times in 7 Posts iTrader Rating: (0/0% )	Yes, the ECT is. My 2 was originally an auto, but I swapped that s*** out as quickly as possible ! ECT = Electronic ControlTransmission. It controls the timing of the shift points and torque converter lock-up. Basically like "sport" mode on newer puss-o-matics..

09-25-2009, 01:17 PM	#5 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	lol thanks think i figured out the problem. time is off by 10 degrees wish me luck guys

09-25-2009, 02:46 PM	#6 (permalink)
silver-mk1-mr2 No Skills Join Date: Jul 2009 Location: st.louis Posts: 19 Thanks: 4 Thanked 0 Times in 0 Posts Blog Entries: 1 iTrader Rating: (0/0% )	well thats good to know its nothing realy bad haha

09-25-2009, 09:02 PM	#7 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	lol... little improvement but it still has some problems.... got a temporary glass pack for some compression until i can get it fixed all the way. you guys think it might be the fuel filter and or pump?

09-25-2009, 09:22 PM	#8 (permalink)
mr2_jake Many skills... Join Date: Sep 2009 Location: Billings, MT Posts: 83 Thanks: 0 Thanked 7 Times in 7 Posts iTrader Rating: (0/0% )	If you have access to one, hook up a fuel pressure gauge. Harbor freight sells cheapo fuel pressure test kits. Should read somewhere between 35-45 psi (someone correct me if I'm wrong).

09-26-2009, 10:43 AM	#9 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	i dunno but im gettin a parts car tommorow. i might actually just plop my engine in that one since its 5 speed and the chassis life is about 140k miles. needs a left front fender and rear bumper

09-26-2009, 12:19 PM	#10 (permalink)
Maticuno Park Ranging Join Date: Aug 2008 Location: California Deserts Posts: 313 Thanks: 15 Thanked 25 Times in 17 Posts iTrader Rating: (2/100% )	Keep your eye on the oil pressure and listen for any rod knocks from the engine. Sometimes people retard the timing to hide the sound of a rod knocking.

09-26-2009, 09:44 PM	#11 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	no knock and pressure on oil is fine thanks for the intel anyway

09-29-2009, 07:03 PM	#12 (permalink)
heavenlydeath 86 project Join Date: Sep 2009 Location: Butler. TN Posts: 31 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	ahaha..... found my problem today when i cleaned the injectors. thanks for the help guys