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Old 01-15-2014, 05:12 PM   #1
hassan.m.ent@gmail.com
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Default 7Mgte crank no start

Hello

I have an 87 7mgte. I am getting crank but no start after the wire that goes to my cps went bad. After hard wiring them, clipping the harness. Still no start. So i decided to replace the cps and run all new wire to it. And yes I CONNECTED THE WIRES TO THE PROPER PLACE. I am still getting crank no start.
Started once, i let it warm up and got ready to drive, shut off and hasnt started since. only crank
Check list
Cps
wires
air
fuel
spark
starter

I dont know where to look next. Please help if you guys have any input. I am taking all suggestions.
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Old 01-15-2014, 05:55 PM   #2
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When it started did it run normally or rough? If rough, check the ignition timing with a timing light and possibly the valve timing (belt). Check engine codes and clear them by removing the EFI fuse for a minute. If same codes rerurn then the problem is real. If the CPS has been removed it has to be inserted following the manuals procedure. Make sure the air flow meter is dry (and plugged in) and never clean the part that goes inside the housing with any solvent. It can be easily ruined. Check for fuel flow by connecting fp and B+ in the diagnostic block behind the battery with the ignition in the on position.
You should hear fuel flowing that stops when the jumper is pulled.
Here is a link to the online MKIII manual. http://www.cygnusx1.net/Supra/Library/TSRM/MK3/

Last edited by Bru; 01-15-2014 at 06:15 PM.
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