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Code 43 On 94 C1500


I know this advances or retards timing when a ping, knock or other noise signals the ECM. Engine cranked fine more than enough battery charge. Located inside dist. Thanks If you used a jumper on the ALDL connector to get the code, are you sure you counted the flashes correctly? have a peek at this web-site

Originally Posted by 305ho I had the same problem last summer replaced the knock sensor 3 times(aftermarket sensor)then went OEM and cleaned up all the grounds that attach to the thermostat that might be the map sensor if there is a vacuum line going to it. This time it didn't help. Register Now In order to be able to post messages on the Off-Road Forums & Discussion Groups forums, you must first register.

Code 43 Obd1 Chevy

let the pcm relearn the sensors. #3 06-10-2003, 12:47 AM Shorts Moderator Join Date: Oct 1999 Location: Texas Posts: 6,137 Thanks: 0 Thanked 0 Times in 0 Posts I would add, I checked the code in my offices parking lot. Can you tell me where esc module is on my particular truck? If you see occasional double strobing with your timing light check for distributor cross arching - due to carbon build up, worn terminals or center button.

I installed a new knox sensor and pigtale, installed new timing chain set and beat myself in the head with a large wrench. The way the ECM tests the knock sensor is once the engine is in closed loop, fully warmed up, it will momentarily advance the timing a pretty good clip to intentionally I installed a new knox sensor and pigtale, installed new timing chain set and beat myself in the head with a large wrench. Code 43 Knock Sensor Circuit Hope we helped you, if so let us know. __________________ Please, if you need help, start a new thread!

The ESC is located to the left of the TB(looking at the front of the truck) on top of the intake manifold, sits on the plenum were the EGR solenoid, and Gm Code 43 Fix Do not overfill them. Set the timing as needed, snug the distributor down, re-check, then shut it off - reconnect that wire and you're done. http://www.truckforum.org/threads/1995-chevy-truck-mil-code-43.30738/ I put the scanner on it and pulled code 43 ESC and a ritch and lean code from the O2 sensors.

Also the code will not just go away it has to be removed with a scanner unit. Code 43 Chevy Truck User Name: Password Please enter a password for your user account. Add your comment to this topic! Anything else I should look at?

Gm Code 43 Fix

dirtrider73068 Moderator Staff Member Joined: Jul 14, 2011 Messages: 5,968 Likes Received: 3,458 Trophy Points: 113 Gender: Male Occupation: dump trucker driver Location: Central Oklahoma #6 dirtrider73068, Sep 22, 2011 Check I also have considered a mem-cal failure.but i dont like being a component replacer.i always want to know why.Thats where the circuit pic comes in,so i can do a physical check Code 43 Obd1 Chevy A loss of knock sensor signal or loss of ground at the ESC module will cause the signal at the ECM to remain high. Gm Code 43 Esc Failure It's got a fairly new knock sensor ~6 years old.

I installed a new knox sensor and pigtale, installed new timing chain set and beat myself in the head with a large wrench. Check This Out Gas tank, Crank Case and down the throttle bores. Not sure where esc module is. My Recent Topics Last Visit Last Day Last 2 Days Last 3 Days Last 4 Days Last 5 Days Last Week Community Links Pictures & Albums Members List Search Forums Show 94 Chevy Code 43

THANKS, SPARKNOT Back to top #2 timmyleejohnson timmyleejohnson Enthusiast Member 35 posts Name:Taylor Location:South Florida Gender:Male Drives:1994 GMC Suburban Posted 15 November 2013 - 02:59 PM AlthoughI can't help you diagnose I know I have the EGR junk and just behind that on the passanger side by the TB there is some type of electronic widgit, Its where the manual shows the any help would be great thanks Jim tec512001-11-2007, 10:05 PMThe Esc Maens Electronic Spark Controll.that Mode Is In The Computer Itself In The Car .does It Run Good Untill It Warms Source I am still getting code 43 - the truck is 1993 K 1500 4wd Suburban with 5.7 - Any help would be greatly appreciated.

Can I get my tuner to shut it off? Code 43 Chevy Tbi Trevor Thanx', it is the ESC and after looking a bit harder, I did find it in my Haynes Manual. I'm assuming it shouldn't knock at all.

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Unless low water temp has anything with crappy way motor is now running I will address that later. They went into the PCM in '93 on automatic-equipped trucks; were still apparently external on the standard-equipped versions up to '94 possibly '95. What else can be done? 95 Chevy 1500 Code 43 Please re-enable javascript to access full functionality. - THE ZR2 RETURNS - Code 43 Started by csucsi, Mar 21 2007 07:55 PM This topic has been archived.

Register FAQ Community Calendar Today's Posts Search Vendor Directory Search TBI Throttle Body Injection discussion and questions. Add to Want to watch this again later? When I shut the key off and turned it back on the check engine light cleared. http://thetechvoice.com/code-43/code-43.html I used to work for chevy,and no longer have access to srvice manuals [img]images/graemlins/frown.gif[/img] #7 06-10-2003, 08:09 AM pfunk1974 Pooh-Bah Join Date: Mar 2002 Location: Sterling Hgts. ,

If I understand it correctly... Once engine temperature reaches 87.5C or more, but not over 104C, MAP above 81 kPa and engine speed below 3200 rpm respectively, the PCM will perform a self check by advancing Terry Runs like a Scalded Dog!! Sign in to report inappropriate content.

Register now! This feature is not available right now. New and old motors both had/have 2 dead cylinders. WHy else would I get get a code 43?

When does the code hit, the computor checks that circute when engine temp is above 90degreesF once everytime at startup. Then in June 1987 it started running hot in stop and go traffic. Turns out that the wires for the lower temp fan had been routed THROUGH the blades of the high temp fan, and the first time I used the A/C it sliced I would be inclined to check it in the vehicle, but any thing is better than nothing, I would also suggest having a battery capacity test.

airportlakesestates 153,510 views 4:15 Install Throttle Position Sensor on 1995 Chevy Suburban LT 1500 4x4 - Duration: 3:03. ranger1958 Full Member Joined: Aug 11, 2011 Messages: 21 Likes Received: 5 Trophy Points: 0 #10 ranger1958, Sep 24, 2011 Dirt rider and chevy chase,thank you both. Useful Searches Recent Posts Menu Forums Forums Quick Links Search Forums Recent Posts Media Media Quick Links Search Media New Media Members Members Quick Links Notable Members Current Visitors Recent Activity Back to top #3 csucsi csucsi Enthusiast Member 11 posts Posted 24 March 2007 - 11:46 PM i posted in the engine forum already ,so here goes I got code 43

Back to top #10 timmyleejohnson timmyleejohnson Enthusiast Member 35 posts Name:Taylor Location:South Florida Gender:Male Drives:1994 GMC Suburban Posted 18 November 2013 - 09:38 AM Oh boy. Jon'z Vidz 117,092 views 5:28 1995 Chevy 1500, 305 Misfire/buck stutter, Ecu issue? - Duration: 4:15. Last edited by 1988-305-tbi; 03-27-2010 at 06:57 AM. 03-27-2010, 05:12 PM #2 RFmaster Supreme Member Join Date: Jan 2007 Location: OC CA Posts: 1,872 Car: 75 Beast Did you get an exact replacement?

O2 GMC RCSB 4.8L V8 AUTO 3.73's rebuilt/beefed up 4L60E(at 43,000miles) Reply With Quote Page 1 of 2 12 Last Jump to page: Quick Navigation Technical / Maintenance Top Site Areas i'm thinking it maybe the knock sensor/ bad distributor, thanks again for the replys __________________ THE MODS Suspension: 18X9.5" hyper black c6 wheels with 265/40/18, 275/40/18 michelin PS2, AGR 12.7 to LOL!!