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Hi guys, thanks for the replies. 361, your explanation is exactly what I was after. Jumping relay bypasses 'most things'. Does this also bypass a faulty ignition (key switch)? For example, ignition switch works fine seemingly, and lights up dash, but when trying to crank the dash shorts...

Checked earth behind engine, and Earth beside fuse box from negative battery post and both are as good as ever it seems by eye... The negative Earth cable is held on by a ring clamp or something which seems part of the body... No idea how to remove this or put a new cable on - it does not seem...

Thanks TT. Car won't crank and dash shorts out in park or neutral. Same symptoms. Looks like manifold's coming off 100% then. Incredibly infuriated. If a wire inside manifold is not obviously loose and starter tests good with direct 12v from battery, where would we check next? Just seeing...

Hi again! Intake gasket arrived, job can now be completed. Before I take the manifold off, just to be extra clear: The starter relay in fuse box when jumped with a wire does not make the starter move. When jumped, is this relay terminal bypassing everything and supplying 12v to starter, or...

ECU is responsible for timing.

Just a quick question if anyone can help, cannot seem to find it online... What is the correct part number for the top idler pulley on a 1uzfe engine (for uzz31 toyota soarer 1991). Pulley is grooved. I tried Nuline EP115 or something from Ebay but the bracket thing is too big and rubs the...

Hello, When we tried to jump car with starterpack, the situation was same - dash turns off. It's usually a bad battery cable or what not, but as far as I can tell all is fine outside the intake... I've ordered a new intake gasket set which will be here by the 5th of Jan, and organized a...

Hello again. I had a look at wiring and all seems good outside of intake valley. Question: When jumping starter relay terminals in fuse box, does this bypass all other systems such as neutral start switch and ignition? For example, the USA cars have immobilizers. If immobilizer is active for...

Great videos, thanks. I think I might try it myself before paying another mechanic hundreds of dollars... Still not sure; Will make mind up by Monday. See, told ya it took em 20 minutes or so to take intake off. Every mechanic I've spoken to so far fears the thing, "Gotta take it to a shop...

Hi there, thanks for the reply! I have no idea what the issue is til a mechanic takes the intake off, but in the meantime will check some youtube vids to see the process. Lube Mobile took about 20 mins to get intake off, and 20 mins putting it back on. Might just go get some tools and do it...

I had an auto elec here today who tested relay in fuse box and found no power at starter. No starter operation when jumped in relay box thingo. He claims a wire is off at starter, or starter is likely faulty. Did not take intake manifold off. "I'm not a mechanic, I'm an auto elec. You have to...

That's a pretty handy video. Will try doing that in the morning. Are pins 5 and 3 the ones to jump for the Soarer V8 on the fuse box thing? https://www.ebay.com.au/p/609920517

HI again! Tested battery when attempting to crank and it reaches 12v. When car is not cranking it is 12.4v. Does this suggest a bad battery? - We tried jumping car the other day with the current battery in the car, attached to a jump pack, and also another battery after that. - Car will not...

Oh also, we tried to jump the car with a super battery pack, and another battery but it still didn't crank.

Hey BD_TT, thanks for the reply. Your story sounds like my story... Battery tests good (12.5v) as I keep saying on the voltimeter, but has not been officially tested with real hardware. Battery is about 1.5 years old now, and warranty was 12 months... Was smoking when starter was shorted. Car...

Hi thanks for the reply! Those are the two Earth points I know of, lol. They appear fine... My current logic: My battery reads 12.5v. Each cell (6 of them) is 2.1v. If it had a dead cell, it would register 10v something... Battery indicator light is green. - Cannot test it til later in week...

Hello, My battery is getting 12.5v when car is off. The JDM Soarer has a 3D dashboard panel - like a jet or something. Turns off when key is trying to ignite car, and comes back on when released. I would lean on a bad Earth or a fried battery after starter motor issue (even through it...

Custom ECU and tune is probably the best bet. The stock ECU's are just too old and unreliable if you plan to keep the vehicle in my opinion. But when these issues still happen after getting the new ECU, you will be most annoyed. Is the ECU the correct ECU for your vehicle? Did previous owner...

Probably is best to get an aftermarket ECU rather than spending $400 on a recapped ECU which is already 20-30 years old as you mentioned, yes. Issue is the price, plus the price to tune that new aftermarket ECU. You're looking at $2000-$3000 or so I believe. Will you have your car another 20...

Maybe this will help you? https://www.clublexus.com/forums/ls-1st-and-2nd-gen-1990-2000/656360-all-my-crazy-lexus-issues-solved-ecu-leaking-capacitor.html With that many errors, a faulty ECU is suspect. Caps may look fine but be dead. Literally every single early SC400/LS400/Soarer ECU is...