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Fault codes

2090 5
So my 91 Turbo car has been sitting for a couple months, but needed it as another one the POS's died. Get in, fires right up, runs for a minute, maybe, the check engine light comes on and it starts to run like crap, missing and engine speed slows down enough to kill it.

Check the codes:

13- MAP sensor or vacuum line may not be working
Easy enough, check the vacuum hose and maybe replace the MAP

27- (turbo) injector circuit #2 not switching right
Don't have a clue on this one and more than likely the cause of the running issue.

Any ideas?
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Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Joined
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16,988 Posts
A simple stall can set a MAP vacuum (13) code because of the sudden loss of vacuum upon a stall while the TPS would disagree with that happening.
Loss of the #2 cylinder fuel injector power or ground (module) side is probably the root cause. It is rarely the injector itself. Any connector corrosion or wire chewing going on?
 

·
Super Moderator
1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
Joined
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16,988 Posts
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