Help me... Please

[supraguy84]

I just bought a 84. 5mge, manual trans supra. Put a new fuel pump in, because the guy was sure that's why it wouldn't start lol, and now the car still wont start, i checked, i have spark. Also i sprayed starter fluid into intake to see if i could get it fired, nothing. actually started and ran yesterday morning? then i shut it off and tried to start back up, nothing. im thinking maybe timing?or where can i start... i am lost....feel free to email me directly rwdetail@hotmail.com, or reply on here..

[interested!]

Originally Posted by supraguy84

I just bought a 84. 5mge, manual trans supra. Put a new fuel pump in, because the guy was sure that's why it wouldn't start lol, and now the car still wont start, i checked, i have spark. Also i sprayed starter fluid into intake to see if i could get it fired, nothing. actually started and ran yesterday morning? then i shut it off and tried to start back up, nothing. im thinking maybe timing?or where can i start... i am lost....feel free to email me directly rwdetail@hotmail.com, or reply on here..

Hi! , OK - there are some questions that need to be answered ,

How long was the engine running before you shut it down?
How did the engine " feel " when it was running ? ( strong or weak? )
Did you " rev " the engine and get a response to opening the throttle ?
Was the engine allowed to idle?
How much fuel was in the tank?
Have you checked the filter?
Have you removed and checked the fuel filler cap for faults?
Does the engine want to start? ( splutters? )
After cranking the engine several times without starting were the plugs wet ? ( if wet-intermittent spark problem / if dry -fuel supply problem )
Are all the electrical connections tight /not corroded ? .

I'm sure there are more questions to come but these are a common start point.















Hope these questions help .

[supraguy84]

i drove it and punched it a few times, and every time it did respond well. once it did hesitate, there is five gallons in the tank, and the plugs are brand new with new wires and cap n rotor. it didnt idle that well at all. also when i try to start, it almost sounds like no fuel. but after trying for a while, it does sputter like it wants to start

[interested!]

Originally Posted by supraguy84

i drove it and punched it a few times, and every time it did respond well. once it did hesitate, there is five gallons in the tank, and the plugs are brand new with new wires and cap n rotor. it didnt idle that well at all. also when i try to start, it almost sounds like no fuel. but after trying for a while, it does sputter like it wants to start

OK , when the engine WAS running , did you manage to get to a point where the thermostat opened ? -- did it heat up quickly - overheat (may be retarded! ) or misfire at all ( hesitate under a heavy load ? - too far advanced ? ) .
I'm grabbing for info to try a long distance diagnosis here .

[supraguy84]

a little hesitation when punching it, just pulled the plugs, they are brand new but very black at the connection.. the thermostat didnt get hot no.. and thank you for your help.

[supraguy84]

yeah, and even when i spray starter fluid in intake, no start...

[supraguy84]

is it compression??? maybe rings? please tell me no lol.

[mechrider89]

compression test will tell you there, stock compression should be between 175-180 psi. Could also be your cold start injector or your cold start injector switch which is I believe the brown sensor on the thermostat housing, I've been having a similar problem and was told that would be the main culprit.

[supraguy84]

i can get it started , but its definitely running way rich, pull the brand new plugs and they are wet, runs great when started. coolant temp sensor? cold start injector? input appreciated so much guys. thankyou

[CanadianBak'inSupra]

http://www.cygnusx1.net/Supra/Librar...ection=FI&P=22

your computer has a constant current going to it through terminal BATT and it keeps a small memory. use the link i posted above to connect T and E1 on the ECU to start diagnostic mode. check for codes and report back.

make sure you are getting spark and fuel. remove a plug and ground it on the head and have some one turn it over.
ensure your getting fuel.
test your cold start injector:
http://www.cygnusx1.net/Supra/Librar...ection=FI&P=71
also test your injectors:
http://www.cygnusx1.net/Supra/Librar...aspx?S=FI&P=50
http://www.cygnusx1.net/Supra/Librar...ection=FI&P=53
if further inspecti0on is required listn for fuel entering the tank. your pressure regulator may not be working properly. check for vacuum leaks to the FPR and possibly check the pressure on the rail:
http://www.cygnusx1.net/Supra/Librar...aspx?S=FI&P=46

it sounds spark related to me because if you sprayed fuel in the intake it should have sparked up assuming your timing is close enough.
maby check to see your ign coil and igniter are within manual specs still. check your fuses.