Quote:
Originally Posted by werminghausen
It runs very well under way but I am busted if there is a stop...stalling comes along with very poor starting after stalling.
I am at a loss.
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Do you still have your AFR meter hooked up? It would be interesting to know what happens to AFR when you come to stop and car stalls. If you see AFR go way high (16-18+) it would indicate you are starved for fuel. Possibly caused by vapour locking in the fuel rails OR as Tomguy suggested, ECU getting information from sensors telling it to inject less fuel.
Some off the top suggestions to experiment with:
- Advance timing (30degBTDC at 3000rpm?) (should run cooler)
- Try plugging vacuum retard line (stop retard at idle)
- Increase fuel pressure to about 34-35 psig. If that helps, adjust MPS to get CO/AFR back to spec.
- Try disconnecting T1 (temp sensor on air filter)
- Keep fuel tank near full
Some later engines had a fuel cooler installed. It used A/C to cool fuel! You can buy aftermarket air cooled fuel coolers (Summit). May help keep fuel cool in those extreme temperatures.
You did not say if you have water pump and new 75C thermostat installed.