Code 42 EST - Page 2 - ZR-1 Net Registry Forums

Jax ZR1 · 07-21-2019

Quote:

Originally Posted by -=Jeff=-

Yes there are hard to find. Jerry is working on a replacement and I have a custom one in my car

Ok I will be as careful as I can thanks again everyone

XfireZ51 · 07-21-2019

Quote:

Originally Posted by Jax ZR1

I took a photo of the pins after I got the plug off and it looks like a bent pin, will need to pull the plenum again to work on it. Anyone ever have luck reusing the plenum gaskets only been in a few days, don’t like doing that but don’t have access to new ones for a week or more. Thanks for the help and hopefully this works

Ur not the first one to have this happen. We all get excited to put the damn thing back together and get it running. Those pins are delicate. Care needs to be taken to ensure they’re inserted properly. If it don’t fit don’t force it.

Jax ZR1 · 07-22-2019

Just finished doing it again and I’m still getting the same code, so tomorrow I’ll check it with multimeter and hope I can find the problem

-=Jeff=- · 07-22-2019

Yes run down the Diagnostic tree I posted (2nd page)

Let us know what you find

Jax ZR1 · 07-23-2019

So this car has a gremlin in it, made an appointment at the closest chef dealership to Check the code 42. Got up this morning to make the hour drive and the car started fine idled great, better then it has since I bought it ran good could feel the secondary working, made the hour long drive no problems stopped to fill up with gas and then it wouldn’t start push started it and then the check engine light came on right away and the idle started going up and down again. Drove it to the shop and that’s where it sits, and I’ll wait and see what they say not a lot of hope right now. It the way I put a brand new starter in when I did the injectors.

G8nightman · 07-23-2019

O no not the dealer cant wait to hear what they come back with.

lfalzarano · 07-23-2019

Code 42 is the Selective Ride Control Switch - open contacts. It will set if the switch is not properly positioned in one of the three detent positions? It shouldn’t make the engine run rough? There must be another code that you haven’t read.

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Jax ZR1 · 07-23-2019

My shop manual says a code 42 is electric spark timing . I’ll wait and see what the shop says, was really happy this morning when the car was running the best it has since I bought it and then just like that back to the same old crap again.

-=Jeff=- · 07-23-2019

Quote:

Originally Posted by lfalzarano

Code 42 is the Selective Ride Control Switch - open contacts. It will set if the switch is not properly positioned in one of the three detent positions? It shouldn’t make the engine run rough? There must be another code that you haven’t read.

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Quote:

Originally Posted by Jax ZR1

My shop manual says a code 42 is electric spark timing . I’ll wait and see what the shop says, was really happy this morning when the car was running the best it has since I bought it and then just like that back to the same old crap again.

Both are correct.. if I am troubleshoot a Check Engine light.. 42 is EST

if I am checking the SRC system, 42 is SRC switch, open.

Jax, I assume you are jumping A and B on the ALDL, not A and C.

-=Jeff=- · 07-23-2019

Hey Jax,

did you check the MEMCAL in the ECM? Check to be sure it is fully seated. Also when you straightened the pin, was it still solid?

07-22-2019	#13
Jax ZR1 Join Date: May 2019 Location: Vanderhoof British Columbia Canada Posts: 34	Re: Code 42 EST Just finished doing it again and I’m still getting the same code, so tomorrow I’ll check it with multimeter and hope I can find the problem

07-22-2019	#14
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,137	Re: Code 42 EST Yes run down the Diagnostic tree I posted (2nd page) Let us know what you find __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

07-23-2019	#15
Jax ZR1 Join Date: May 2019 Location: Vanderhoof British Columbia Canada Posts: 34	Re: Code 42 EST So this car has a gremlin in it, made an appointment at the closest chef dealership to Check the code 42. Got up this morning to make the hour drive and the car started fine idled great, better then it has since I bought it ran good could feel the secondary working, made the hour long drive no problems stopped to fill up with gas and then it wouldn’t start push started it and then the check engine light came on right away and the idle started going up and down again. Drove it to the shop and that’s where it sits, and I’ll wait and see what they say not a lot of hope right now. It the way I put a brand new starter in when I did the injectors.

07-23-2019	#16
G8nightman Join Date: Dec 2007 Location: NYC Posts: 1,182	Re: Code 42 EST O no not the dealer cant wait to hear what they come back with. __________________ 90 Chevy ZR1 LPE #2315 'SOLD' 90 Chevy ZR1 LPE #2774 'SOLD' 91 Chevy ZR1 Callaway aerobody 91 Chevy ZR1 #1512 91 Chevy ZR1 #951 95 Chevy ZR1 #338 'SOLD' 91 BMW 850i 94 BMW 850csi 95 BMW 850csi 94 Lotus Esprit S4 07 Benz CLS550 06 BMW M5 "SOLD"

07-23-2019	#17
lfalzarano Join Date: Feb 2011 Location: Clayton, North Carolina Posts: 1,133	Re: Code 42 EST Code 42 is the Selective Ride Control Switch - open contacts. It will set if the switch is not properly positioned in one of the three detent positions? It shouldn’t make the engine run rough? There must be another code that you haven’t read. Sent from my iPhone using ZR-1 Net Registry __________________ Lou[COLOR="Red"][B][SIZE="4"][/SIZE][/B][/COLOR]

07-23-2019	#18
Jax ZR1 Join Date: May 2019 Location: Vanderhoof British Columbia Canada Posts: 34	Re: Code 42 EST My shop manual says a code 42 is electric spark timing . I’ll wait and see what the shop says, was really happy this morning when the car was running the best it has since I bought it and then just like that back to the same old crap again.

07-23-2019	#20
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,137	Re: Code 42 EST Hey Jax, did you check the MEMCAL in the ECM? Check to be sure it is fully seated. Also when you straightened the pin, was it still solid? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978