OK got the new computer in and I have an error code I need help with


Code 42
Electric spark timing monitor error. Can anybody help I have a new module from Wells.


Thanks
BRian

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1989 Camaro RS

305 .030 over Hydro Pistons
Vortech heads milled to 58cc...Performer RPM intake....LT4 cam..Crane Gold rockers...FastChip custom chip...ALum. Driveshaft...3.73 gears with Posi...underdrive pullys...Rebuilt 700R4 with Vette Servo and B&M shift Kit...MSD ignition...A/C Delete No SMOG junk....1997 SS leather interior...B&M Shifter... Ultimate TBI mods...14X3 K&N open Element Non-Drop...Hooker headers....3" exhaust with Flowmaster Cross flow 16X8 Wheels from 97 RS Spohn LCA's Spohn Panhard Bar..LETS PLAY FORD!!

www.geocities.com/feltsb

 

If the brand name is Wells, I'd bet money that it is the culprit. I have given up on Wells. It is a cheap autozone part and not worth penny. I have gone through a number of Wells products, and came to the same conclusion every time.

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'87 Silverado
350 4 bolt main bore .040 over
TB Injected
Ported and Polished heads
Comp cams 268h cam and top end
Flowtech headers
3.73s on Detroit locker

 

I just got a Wells module yesterday, and my car starts now , but it just doesn't seem to idle right. I guess I'll check for codes and see what happens. If I get the same code, I'll be lettin' ya know, as well as takin' it bak fer a newon. **** like that pisses me off!!!! It wasn't throwing any codes before the new module, it just wouldn't start. Now my idle sits at 500rpm in Drive and sputters up 'n' down a bit.

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92 RS w/t-tops 305 TBI Auto.
170K miles and don't burn a drop o'oil
-K&N Truck filter #1500 w, open ele.
air cleaner
-Dynomax 2 1/2" cat-back
-B&M TransPak
-Jet Stage2 Chip
-180* T-Stat w/ 185* Fan Switch
-JVC CD--Alpine speakers & 4ch. amp
Rockford 2ch. to 2 MTX 12" subs

 

Well purchased the dist controll module and it did the same thing. Any other ideas


BRian

 

Is your EST bypass connector plugged in? And did you reset the computer after you replaced those pieces?

 

I think jza has got it right. I'll bet the bypass connector isn't right, clean it, or whatever. I believe it's a tan/black wire. single wire connector.

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'92 firebird t-tops
305tbi,670cfm tbi, 2 1/2" Dynomax catback, 9x3 K&N open element

 

THe wires are fine. It makes a huge difference when its plugged in. Anyways We went to Auto Zone and got them to print out how to diagnose the code 42. Turned up nothing, but the computer still spits it out to us and the Auto Exray says Saprk Timing Monitor Error.
What the Hell is this?

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!

 

Sounds like it might be refering to the pick up coil. I think that's the only thing that tells the ECM where the rotor is as far as the timing. That would be the "monitor"?

I haven't used the AutoXray, but that is the only thing that would fit the description of a "spark timing monitor". Have you check the resistance on the pick up coil? It should fall between 500-1500 ohms. Optimum is right around 750-950 ohms, but anything in the above mentioned range will work.

BTW, I told you earlier that I would check mine for codes again. I did and I got none. I guess I need to adjust the idle speed.

Good luck,

AJ