92 S10 4.3L Random Stall after reaching normal operating temp. Most of the time starts right back up. Replaced MAP Sensor, point, plugs, dist cap, wires. Gives code 42 and 43.

Asked by Apr 05, 2017 at 04:58 PM about the 1992 Chevrolet S-10 Tahoe LB 4WD

Question type: Maintenance & Repair

I have been fighting this problem for years. Most of the time it starts right back
up. Replaced MAP Sensor, point, plugs, dist cap, wires. Gives code 42 and 43.
It will stall at idle at a light, and cuts out at hwy speeds. I can shift in neutral and
rev engine at lights to keep from dying. Help!!

3 Answers

85,585

Have you checked the fuel pressure? It should be 9 to 13 lbs. Could be the fuel regulator in the TBI or the fuel pump getting weak. Also on the codes, is the brown wire behind the glove box plugged together for the timing advance? This is what the codes are...42, ELECTRONIC SPARK TIMING (EST) CIRCUIT... 43, ELECTRONIC SPARK CONTROL (ESC) CIRCUIT

1 people found this helpful.
24,155

Well you may have a bad Ignition Control Module or ignition/pickup stator or a bad knock sensor or bad connections to them or shorted wiring to them or the distributor is worn. Test all those along with the (EST) Electronic Spark Timing. May need a repair manual to do so it very in-depth to explain here, May can find some of those test already posted to the net.

1 people found this helpful.

I will check out both of the above answers and post results. Thank You!

Your Answer:

S-10

Looking for a Used S-10 in your area?

CarGurus has 5 nationwide S-10 listings and the tools to find you a great deal.

Postal Code:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,830
  • #2
    Trebor66
    Reputation
    1,130
  • #3
    John Saffrahn
    Reputation
    1,120
View All

Related Models For Sale

Used Ford Ranger
9 Great Deals out of 270 listings starting at $2,995
Used GMC Sonoma
8 listings starting at $4,950
Used Ford F-150
122 Great Deals out of 11,133 listings starting at $369
Used Chevrolet Blazer
24 listings starting at $3,995
Used Dodge Dakota
3 Great Deals out of 141 listings starting at $4,500
Used GMC Sierra 1500
78 Great Deals out of 11,096 listings starting at $4,499
Used Chevrolet Camaro
9 Great Deals out of 1,004 listings starting at $4,500

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.