/>
/> 
/> 
Good morning, yesterday afternoon I removed the CAS sensor to replace a leaking O-Ring and the cam cover gasket as well. I tried to start the car a few hours later as I had to move it but it didn’t start. The engine cranks and sometimes might even fire one cylinder but never gets close to start. There is fuel and spark so I’m guessing I must have somehow messed up with the CAS.
Is it possible to mount it inverted by 180 degrees? The two lobes seem different so I don’t believe so but I wouldn’t be 100% sure.
Are these sensors prone to failure once removed? I struggled a bit to remove it initially and it hasn’t been exactly a smooth operation.
Should I just order a spare one or can try some other things first?
Thanks in advance to all those who’ll reply!
What you put in, you'll get back ten fold
***** THIS IS VERY IMPORTANT TO THE SITE AND HELPING YOU,OTHERWISE IT CLOSES AND ALL THIS ON LINE GARAGE IS GONE FOR GOOD*****
Greetings and welcome to menders, this site was built for every owner that might need her to help keep those bills low and also keep them on the road where they belong, she is run by very passionate enthusiasts owners for passionate enthusiastic owners, see her like a on line garage, there is a lot of tech stuff hopefully explained for everyone to use, if there is something you cannot get your head around, or you feel that there is a strong walk through guide missing that needs creating by one of us or from yourselves, please let us know, we are also on false book and youtube, which as short tech vids to help, and again if you feel there is a vid that would help please get it touch.
the menders is free, but like everything there is a cost to run things and bills( we are just happy its not a heating cost), so if we have saved you hundreds, please throw a small donation in the pot so we can keep on going to carry on helping others in the same way .
*** we are currently looking for a sponsor for this year, so if you have the passion and can see this sites worth to everyone , please get in touch and step forward to help***
And thank heavens that we are now on the way back up the brighter ,warmer longer days, "come on summer", and lets see those project builds.
M-m
Greetings and welcome to menders, this site was built for every owner that might need her to help keep those bills low and also keep them on the road where they belong, she is run by very passionate enthusiasts owners for passionate enthusiastic owners, see her like a on line garage, there is a lot of tech stuff hopefully explained for everyone to use, if there is something you cannot get your head around, or you feel that there is a strong walk through guide missing that needs creating by one of us or from yourselves, please let us know, we are also on false book and youtube, which as short tech vids to help, and again if you feel there is a vid that would help please get it touch.
the menders is free, but like everything there is a cost to run things and bills( we are just happy its not a heating cost), so if we have saved you hundreds, please throw a small donation in the pot so we can keep on going to carry on helping others in the same way .
*** we are currently looking for a sponsor for this year, so if you have the passion and can see this sites worth to everyone , please get in touch and step forward to help***
And thank heavens that we are now on the way back up the brighter ,warmer longer days, "come on summer", and lets see those project builds.
M-m
Car won’t start after replacing CAS o’ring and cam cover gasket
-
Mazda Mender
- Site Admin
- Posts: 15097
- Joined: Tue Dec 06, 2011 6:18 pm
- Location: Pie land, in the glen of Wiganshire
- Contact:
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Did you use our guide?
M-m
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Not sure if what I read was the guide you are talking about but I did read topics here on how to do it. I marked it before removal and I am sure it is perfectly aligned. I’m thinking now it might be the wiring which was in tension and a bit stiff. I will check it closely as I get back to it.
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
I took everything apart and put it back together and got same results. Checked spark and found out that 2 and 3 don’t get any. I am now thinking either the coil pack or its wiring got upset when I slightly moved it to remove the cover. Is this a know issue?
-
Mazda Mender
- Site Admin
- Posts: 15097
- Joined: Tue Dec 06, 2011 6:18 pm
- Location: Pie land, in the glen of Wiganshire
- Contact:
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
If 2 and 3 are not firing then ot is wiring,coil pack or HT leads..
M-m
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
I checked the coil pack.
The wiring between its connector and the coil pack doesn’t show any cut or sign of wear.
Resistance between connector pins is slightly lower than 1ohm, which should be correct.
The secondary coil resistance between 1-4 and 2-3 terminals is also in line with the specs I found online, about 12.90 Kohms.
As a final check to exclude an issue to the coil pack I will swap wires between the two coils and also the relative plug leads. If the pack is good I should then get spark at 2-3 but not 1-4
The wiring between its connector and the coil pack doesn’t show any cut or sign of wear.
Resistance between connector pins is slightly lower than 1ohm, which should be correct.
The secondary coil resistance between 1-4 and 2-3 terminals is also in line with the specs I found online, about 12.90 Kohms.
As a final check to exclude an issue to the coil pack I will swap wires between the two coils and also the relative plug leads. If the pack is good I should then get spark at 2-3 but not 1-4
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
I just confirmed that the coil pack has no issue. I inverted everything and had spark from 1-4, connected to the “left side” but not from 2-3. The problem is the white cable going to the side of the coil which fires 2-3 not bringing signal anymore.
Is there any chance that a bad CAS only affects two cylinders or I would have zero spark on all 4?
If it can’t be the CAS I need to check the wiring loom before the coil pack connector. It’s all wrapped in tape, not sure if OEM or someone tampered with it.
Is there any chance that a bad CAS only affects two cylinders or I would have zero spark on all 4?
If it can’t be the CAS I need to check the wiring loom before the coil pack connector. It’s all wrapped in tape, not sure if OEM or someone tampered with it.
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Quick update:
I checked if any trouble code was stored. Zero flashes, assuming there is not an issue with that as well.
I checked the wires between coil pack and ignite, all fine, no interruption.
I checked the voltage at the CAS connector: 0-12-5-5 as it should. I am assuming also that harness is fine.
Although no code is stored I am currently trying to find a way to see if CAS is sending the right signals.
Any other ideas?
I checked if any trouble code was stored. Zero flashes, assuming there is not an issue with that as well.
I checked the wires between coil pack and ignite, all fine, no interruption.
I checked the voltage at the CAS connector: 0-12-5-5 as it should. I am assuming also that harness is fine.
Although no code is stored I am currently trying to find a way to see if CAS is sending the right signals.
Any other ideas?
-
Mazda Mender
- Site Admin
- Posts: 15097
- Joined: Tue Dec 06, 2011 6:18 pm
- Location: Pie land, in the glen of Wiganshire
- Contact:
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Are you getting fuel...
M-m
M-m
The Disclaimer:-
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
This post is a natural product made from recycled electrons. The slight variations in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects, the articles/answers/comments are provided for information purposes and they are not intended to substitute informed professional advice, I or mazdamenders.net cannot personally be hold responsible for any damage occurred from following this procedure or any injuries from it. Proceed at your own risk.
Mk 1 Eunos 93 black V.S II 1.8 ,
Mk 2 .1/4 Roadster 99 black & gold V.S 1.8 .
Mk 1 Eunos 90 1.6 soul red ..f/ build
MK 2.1/4 Blue V.S Roadster 1.8 99 ..
MK1 1.8 ,white import.. (Ashleighs)
MK1 1.6 yellow J ltd import.f/build
MK 1 1.8 black Tokyo Ltd..f/build
http://www.mx5oc.co.uk/ http://www.mx5nutz.com/forum/ http://miata.net/ http://www.autolinkuk.co.uk/
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Yes.
Replacement CAS will arrive on Friday. In the meantime I am thinking how to test mine.
Found this guide http://www.rivercityroad.com/garage/cas_testing.htm
Don’t have the material to connect to each individual pin yet, once I will I’ll share results.
Replacement CAS will arrive on Friday. In the meantime I am thinking how to test mine.
Found this guide http://www.rivercityroad.com/garage/cas_testing.htm
Don’t have the material to connect to each individual pin yet, once I will I’ll share results.
Re: Car won’t start after replacing CAS o’ring and cam cover gasket
Problem solved with a different CAS!
Who is online
Users browsing this forum: No registered users and 20 guests
