94 Miata - Cranks, won’t start, no CEL

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punklove
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94 Miata - Cranks, won’t start, no CEL

Postby punklove » Fri Sep 07, 2018 10:57 pm

Happy Friday! I’m sure having one!

Got ready for work this morning, jumped in the trusty ol’ 94 highway warrior, opened the garage, fired up, pulled out right away onto the driveway to warm it up (to avoid the exhaust fumes in the garage) and that sweet little machine of mine decided to turn off on the driveway and not fire back up.

She cranks like a champ, but won’t seem to fire up. Just keeps on cranking.
No CEL.
Fuel pump turns on when jumpered.

Gonna check wiring, clean grounds, check fuses, etc.

suggestions, funny stories, advice, please.
happiness is a warm miata. . .

94c package, black and tan w/ stripes.
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Big Lan
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Re: 94 Miata - Cranks, won’t start, no CEL

Postby Big Lan » Sat Sep 08, 2018 12:15 pm

Couple of possibilities I can think of right off the bat:

-CAS failure, but you should be able to pull a code for that

And

-timing belt failure

Check the TB first: open the oil cap, look at the cam while someone cranks the engine (or get one of those starter trigger things and do it yourself). No cam spinny, belt's broken. Check it out, post back.
67 Volvo 122s | 71 Pontiac Grand Prix | 88 Thunderbird Sport | White '90 A Pkg | '95 PEP | 03 GMC Sonoma
Scandinavian Flick wrote:I like women because kitchen

TheOtherRedMiata wrote:I'm a bitch!
punklove
Stage 2
Posts: 263
Joined: Wed Jan 02, 2008 4:13 pm
Car(s): 94 C Blk/Tn
Location: the city

Re: 94 Miata - Cranks, won’t start, no CEL

Postby punklove » Sat Sep 08, 2018 4:00 pm

Checked TB, it turns when cranked.

Hoping it’s not the CAS ... wiring to/from CAS /coil pack /and generally in the bay looks fine (nothing falling apart, brittle, or cracking... which is mind blowing given how bad I am at keeping things clean). Grounds all tight, clean.

Will reset CEL and check for codes again later, and pull out the multimeter and start poking around too.
happiness is a warm miata. . .

94c package, black and tan w/ stripes.
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Mylesofsmyles
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Re: 94 Miata - Cranks, won’t start, no CEL

Postby Mylesofsmyles » Wed Sep 12, 2018 7:52 pm

Do you have spark?
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Big Lan
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Re: 94 Miata - Cranks, won’t start, no CEL

Postby Big Lan » Sun Sep 16, 2018 9:26 am

Check the "main" relay. Make sure there's power on the white/red wire in run and during cranking. That's an old failure I hadn't thought about in years, but a main relay failure would certainly cause your issue.
67 Volvo 122s | 71 Pontiac Grand Prix | 88 Thunderbird Sport | White '90 A Pkg | '95 PEP | 03 GMC Sonoma
Scandinavian Flick wrote:I like women because kitchen

TheOtherRedMiata wrote:I'm a bitch!
punklove
Stage 2
Posts: 263
Joined: Wed Jan 02, 2008 4:13 pm
Car(s): 94 C Blk/Tn
Location: the city

Re: 94 Miata - Cranks, won’t start, no CEL

Postby punklove » Thu Sep 20, 2018 3:07 pm

Just got it back from Twibbs. New (used) CAS installed and a bunch of other stuff I’d delayed doing got done.

Curiously, it fired up when the flatbed arrived to tow... but it did not sound happy at all... everything seems to be good now.
happiness is a warm miata. . .

94c package, black and tan w/ stripes.
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Big Lan
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Posts: 6382
Joined: Sun Jan 06, 2008 12:26 pm
Car(s): Too damn many
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Re: 94 Miata - Cranks, won’t start, no CEL

Postby Big Lan » Thu Sep 20, 2018 4:03 pm

So it was the CAS then? Regardless, glad you got it all sorted out.
67 Volvo 122s | 71 Pontiac Grand Prix | 88 Thunderbird Sport | White '90 A Pkg | '95 PEP | 03 GMC Sonoma
Scandinavian Flick wrote:I like women because kitchen

TheOtherRedMiata wrote:I'm a bitch!
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maxh2o
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Re: 94 Miata - Cranks, won’t start, no CEL

Postby maxh2o » Mon Sep 24, 2018 8:40 am

glad she's back on the road.

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