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ummm my bad? it runs now...thanks

EFI did blow at first but hasn't gone since It has some power when it's on ACC like headlights and alarm and int. lights but not radio or power mirrors, seats, windows, locks etc. It will crank all day long but when I grounded out the sparkplug it wouldn't spark.

come on just throw an idea out there so i can test it

well this has been a problem for almost a YEAR now... the begining of this problem is on http://www.supramania.com/forums/showthread.php?t=16046&referrerid=2944 but i'll sum it up...The car was hooked up with reverse polarity and current flowing the wrong way since that the car hasn't started, I...

Alright this is pissing me off....I got a brand new ECU and put it in and turned the key and it STILL wont spark! but the IGN fuse and none of the other fuses blow but it still won't spark.....

alright GOOD NEWS kinda.... when the ecu was all unplugged i turned the key and FUSE didnt blow! I then stuck one plug in at a time and found which plug causes it to blow and it was the A terminals on this website http://www.plxdevices.com/ECUDatabase/Toyota/TOY_Supra_87_88.pdf but i doubt you...

alright next thing to test is the ecu w/ crossed fingers how would I go about testing that? just unplug it and then turn the key and if the fuse doesnt blow then its the ecu that's bad...im guessing...next question where is the ecu..again i was guessing thats it would be like passenger kick...

Just to add I guess if anyone knows what this is someone has suggested that it could be the coil condenser but i really have no clue what a coil condenser is so drop a note on that too if ya will

ok sorry it took so long i went to las vegas for the past week but i just tried to unplug the alt and tried a new fuse and it did the same as before....blew 7.5 amp IGN fuse as soon as i try to turn it over and then the spark plug wont spark after that fuse blows....im thinking a power wire is...

I checked all fuses in the engine fuse compartment and they are all good now the ALT was the only one that blew then i checked a few in the drivers kick panel and all were good except for IGN which blows everytime i try to turn it over....by the way why arent I getting a check engine light when...

I said EFI is good it never blew I did a resistance test on it and it had none how would i go about checking the resistance in the coil pack?

EFI is good IGN fuse was bad so i replaced it and as soon as i turned the key it blew it out again so that has it narrowed down to my IGN wires and I found out my brother tried to jump my car without me and DID hook them up backwards so yes all these problems are because of that so what fuses...

Old Problem:Bad Battery Jumped it but then blew ALT fuse so I got a new one of those and a new battery New Problem: No spark It turns over but then just cranks and cranks and I pulled the spark plug out and put it on some metal and no arc what else could have gone bad in this electical...

My battery went to shit and it didnt have enough power to start so i got someone that would help me jump it and gave them enough respect to let them do it and the dumbass hooked up positive to negative and negative to positive but it didnt start after that and i took the battery back and they...