stumped
 

Hi! -Had a close look at your ground wire , seems a bit loose, so could you be suffering bad starting? . Also, the ground from the plate should be connected to the cylinder head as the cam cover is mostly insulated ( sits on a rubber gasket and held down with rubber washered bolts ) .
May I suggest that a bulb and wire or a multi-meter be used to confirm continuity of the wire and the curcuit or plate is fully earthed .

Interested- the upper intake is currently removed on that engine as we are in the process of swapping a usdm wiring harness on it, so that's why nothing is really connected atm.

Dawg- its from a turbo, why would i take the time out of my day to send you pics of a N/A? Like I said above, I don't have a pic of the harness side of that connector so I can't tell you what wires connect to what. There are hundreds of people on here who actually own 7mgte Supra's (the one i took the pics from isnt mine), one of them will have to help you.

stumped
 

Hi! -thanks for your feedback , just trying to assist , my car wouldn't start after overhauling following a BHG , so I know how frustrating a non-starter is , got it going eventually after finding my ground wires were not re-connected underneath the intake manifold and , the grounding wire was very corroded and only connected by 3 strands at the coil plate , thats why I made a new one .

Yea your right i didnt noticed it until later last night but already so late i had to grab sleeps lol was lazy edit mine ,but you are right its turbo now i got it correctly..

Blue/redto black
Blue/yellow to white
Yellow to green
3 tan wires to black n orange
jus made me 2 ground wires jus in case lol

Yep it must be correct but wtf same result :frown: i might.have a professional do it for.me as i give up on it. Wtf with no spark? :rant: i have gas, air, no spark..

Huh wtf now it jus crank few time then die even have battery jumpstart.. i had instal new wires for cam sensor n followed it correctly 1-2-3-4 to blue, red, black, yellow. Then huh y i dont even see engine lighy on its still off but just crank ok?

i had a experienced mechanic check it out within 20 mins he told me the ecu need to be replaced i looked at it, smelt small burn, n i cleaned it then try again then engine just cranks. Starter too it needed to be replaced i has tested it its great no voltage drop. i hope its not ECU cuz its already so hard to find a +89 turbo m/t ecu in bayarea foreal. wld be nice if have any1 who have supra n a mechanic too that live near me come through and help me out would be awesome, thanks.:x:

Nothing so far only cranks, i have all 4 wires grounded to intake mod. Have set tine to 0 and cps keep bein out of tooth maybe its broke? How am i suppose to know of im exactly TDC anf i already changed oil wow 1 years parkin turned out got 2 gallons ouy smellin lik gas! I have home battery charger so i know battery alwayz full 13.4. Already took starter out and have 2 starters n ECU workin perfect.. huh wat hell? Im so pissed i dunt get to drive it so far smh i have so much faith.

lmk if im off base or right base?? tks.

This should help with the timing:

http://www.toyota-supra.info/forums/...-e-timing.html

Let us know what happens after you are 100% sure it's set properly, then we can progress forward with things to check