Hi new to club. I inherited a 1990 bonneville from MY grandparents who have past. Drove car from Tennessee to Illinois. Car then died. Have a code 42. Found that out after I pulled the dash and replaced ck engine bulb. I have replaced the icm tps camshaft sensor and crankshaft sensor. Hope crankshaft sensor is in right. Watched a lot of videos. Don't know where to go now. Would really like to keep car it's sentimental. Thanks in advance for the help.

Please anyone any help.Im at a loss on what to do.

It's not unheard of for the wiring leading to the crank sensor to get worn through and short out. Check out its harness for a couple feet. You'll probably destroy the loom in doing so, so have some handy.

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WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
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Sorry didn't post that I already replaced the harness with a new one. This is driving me crazy lol

I'd suggest using loom from the engine compartment of a car at a wrecker. Any of the junk I've ever bought at parts stores has proven it's for interior use only and melted into a blob of plastic anywhere near the engine. I continue my quest for the "real" stuff (at a reasonable price).

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Bose Luxury Sound System w/Touch Screen Navigation, Addition of Factory XM, 2005 MY Antenna, OnStar Upgrade (3G),
RainSense Wipers, Backup Camera, '00 Style Door Panel Courtesy Lights, Heated Washer Solvent, 2X Remote Trunk Release,
Turn Signal Mirrors, Center Console Courtesy Lamp, Rear Outboard Heated Seats, PVD Chrome 18" Factory Rims, Upgraded
Carbon Fibre Appearance Interior Trim, Highly Modified Main Body Harness, Instrument Panel, Door, Door Panel & Headliner
Wiring Harnesses, Custom Fuse Box & Tire and Loading Information Decals, Additional Acoustic Insulation

I understand what you are saying and tend to agree bit the harness is brand new. Only ran car once. Does the crankshaft sensor have anything to do with this symptom?

Will the car run if the throttle is held open? If so, how well does it run?

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~Randall~


1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place

It runs ok when I hold the pedal at a higher rpm.Sometimes it sputters a little but otherwise it's good. I drove the car from Tennessee to Illinois with no problems.

I know it's not related to code 42, but it may be good to check fuel pressure and behaviors to rule it out as a problem.

For 42, you may try checking the ground under the ICM. Sometimes I wonder if this code can set if the engine suffers from stalling and the ICM and ECM don't hand off to eachother properly.

Do you have a spare ECM kicking around?

_________________
~Randall~


1993 Buick Park Avenue - 197k - Some odds and ends done - Simply won't die
1994 Buick Regal - 78k - Bone stock - Always ready for a good kicking
1990 Oldsmobile 88 - Gone to a better place

No don't have a extra ecm. And I already checked the ground. Don't know how much more I can change lol

If you or anyone has a run that's good let me know.