Hard Start Dead Tach

[NoFlipping]

About a week ago I had a bout of hard starting. I actually figured at the time it was the battery, as it's now about 5-6 years old. I payed no attention of the tach, as I now realize would have helped. Well, the car eventually started and I went on my merry way.

Yesterday, same hard start, though this time I knew to watch the tach. Lo and behold, nothing. Dead as a door nail. Well, the car started after a few minutes and I went on my less than merry way with a dead tach and a CEL - car running great. About a mile later, the tach comes to life, the CEL goes out, car still running great.

I get home pop the hood check the codes and ...111 - nothing stored, nothing KOER. Would the CID only throw a code while the engine's running?

My real question is since the CPS is new (less that 5 weeks old), things point to the CID (cam sensor), right? Anything else I might be missing here? And if it is the cam sensor, other than location, how much of a bitch is it? Do you need to worry about TDC or some 26 degree thing?

Thanks,

Mike

 

[nc89sho]

was the CPS gapped correctly when installed? sounds related to that. maybe even a loose connection or something. that's were the tach gets it's feed from.

 

[luigisho]

New does not always mean not faulty. The Cam sensor replacement requires no recalibration of timing. Location is a bitch on that one. Alternatives??Heat soak or faulty ground/sensor like DIS?

 

[sdpatt]

You said the codes were "111". There are two portions of the KOEO test: the hard faults and the memory codes. There should have been a 214 in the second memory section, but not the hard faults. Your symptoms do sound like a faulty CID sensor.

 

[NoFlipping]

I would have expected a 214 code as well, Scott. But, much to my surprise I got nothing - KOEO or KOER. That's why I was wondering if the CID would only throw codes while running (understanding that by the time I was able to test it, it was working again).

Not having a stored code seemed a little odd to me, too. Although I've had MAF sensors go bad with narry a code.

nc89sho, it was gapped per spec and am assuming it's okay. I thought a bad CPS would keep the engine from starting at all. Is that true (vs. the CID eventually "letting" the engine start anyway)?

But with regard to the tach dying, would the CID crapping out also **** the tach?

 

[monkeyssho]

I had my Cam sensor go bad and it would cause a hard start. There would be no tach for a bit with the check engine light, and then all of the sudden it would be fine. Well i borrowed a computer from auto zone and right after it would happen ran for a code and there it was the CID code an number 1 cylinder low on balance test. Well $35 later and 3 hours of work at 2 in the morining no more problems to this date. this item was cheap and not too bad to change and no more problem...Adam:burn_out: