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The mkiv Supra Owners Club

Supra cranking but no spark...


Guest suprageek

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Guest suprageek

Was driving my supra this morn and it died, (tt bpu auto 1993) it's trying to fire up but refuses to start, tried the engine diagnostics and I am getting a steady flashing light, listened to the fuel pump and it sounds like its priming when I try and start the engine, checked spark plugs all ok, swapped around the Eli relays and they all seem to work, anyone any ideas please on what the problem maybe? Cheers

Edited by suprageek (see edit history)
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Would that not show up on the error code James?

 

No, MAP sensors won't usually log an error code.

 

 

Anyway, if there is no spark, as someone else said, check the ignition amplifier, had it happen to mine a couple of years ago where it hadn't been plugged back in properly and lost connection.

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Guest suprageek

Right I got an igniter and it's still not running, I'm thinking it maybe the crank position sensor but there is no error code showing when I bridge the terminals on the engine diagnostics port just a steady flashing light, could it maybe still be this even with no error code showing? It is backfiring instead of starting up, I've read previous threads and it could be a number of things ecu, bad earth, coil packs, plugs, cam pos sensors, crank pos sensors, has anyone any ideas I'm lost! Thanks

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