My 94 camry goes dead immediately after cranking. It shows a code of 31. on 1994 Toyota Camry

My car has 318000 miles. The transmission has been replaced 3 yrs ago. No sensors or anything electrical has ever been replaced on this car except plugs and wires and distributor cap. Was running fine before this happened two days ago.

by in Hamilton, MS on April 24, 2013
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3 answers 3 comments
ANSWER by , April 24, 2013
could be a bad ditributor
ANSWER by , April 25, 2013
Is distributor turning? When's the last time the t-belt was changed? Is it cranking over faster or at irregular speed? Does it start , then stall , or crank , but no start?
COMMENT by , April 25, 2013
I had the tbelt changed 3 yrs ago. It's been driven 18000 miles since it was changed. The car cranks and dies immediately. I changed the fuel filter thinking it wouldn't getting any gas but that didn't solve the problem.
ANSWER by , April 25, 2013
COMMENT by , April 25, 2013
should I replace the map sensor or could it be something else making this 31 code show? Would a clogged egr valve make it have these symptons?
COMMENT by , April 25, 2013
ck vaccum to map sensor and 5v reference signal then decide