Question about 1990 Chevrolet Suburban

Open Question

Ecm 1 fuse keeps blowing

Fuse blows when ignition is turned on. have checked o2 sensors crank sensor and so on

Posted by Anonymous on

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 14 Answers

SOURCE: Check Engine Light - O2 Sensor - bank 1 running lean

you should have three oxygen sensors on your car, one for each bank of three cylinders; should be towards the Y pipe on each exhaust manifold. Additionally you should have one on the exhaust pipe before the cadilitic converter.

Posted on Nov 20, 2008

Ad
  • 4088 Answers

SOURCE: 1987 chevy s10 2.5l tbi will not start. changed

That eliminates the crankshaft and camshaft position sensors. Have you checked the fuel injector itself for an open winding or stuck valve plunger? There should not be a steady 12 volts to the injector--if good injector, it would be spraying fuel steadily into the throttle body. But at least the engine should try to run if poorly. Take the injector out, dry it off with air, and intermittently apply 12 volts to one terminal while grounding the other. You should hear a click from inside every time you touch 12 volts. If not, replace it. If it does, it may be plugged with debris. Try blowing through it in reverse with compressed air.

Posted on Jul 17, 2009

  • 1 Answer

SOURCE: engine 1 fuse keeps blowing when you turn the key

Engine 1 fuse powers the computer and some sensors. I had this same problem on a 98 chevy van 3500 and found the wire going to one of the oxygen sensors had shorted out on the heat shield. Inspect the wires going to all of the oxygen sensors. On this van one of the oxygen sensors on the driverside the wire was laying on the heat shield which eventually rubbed through the wire and shorted it out blowing the fuse. Your short could be on a different sensor but check all of the oxygen sensors because the wire runs so close to the sharp heat shield.

Posted on Aug 06, 2009

wilsodfarm
  • 986 Answers

SOURCE: blown ecm fuse

unhook the ecm and check if the fuse does not blow,you will know if it is the ecm,Hope this helps

Posted on Sep 06, 2009

InMrFixIt
  • 121 Answers

SOURCE: Fuse to suburban cigarette lighter/power locks keeps blowing.

Unplug cigarette lighter, check circuit, unplug each door individualy at first, Don't forget the back doors, check circuit. Usualy the door wiring is damaged but there may be more then two cigarette lightes depending on the model.

Posted on Dec 29, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Ok well I put in a brand new starter because my crank sensor keeps blowing and thinking I fixed the problem long behold I keep blowing my crank fuse when I try starting the truck I don't know wear to start


No, year make or model. But if you blow the crank fuse, it is between the starter and the ignition switch. Could be the switch, but most likely the wire. At the relay there are four pins. 30 is B+ all the time, 87 is to the starter. 85 and 86 can be switched. But one is B+ with the key in start position, the other goes to the ECM, this would be ground.. Since you're blowing the fuse, you need to find the short to ground. this would be the 85 and 86 wires.

Oct 26, 2014 | Cars & Trucks

1 Answer

Why does my ECM-I fuse keeps blowing?


Did you check the crank sensor wire, it may be hitting the hot exhaust. does the wire going to fuel pump have a problem and is shorting out. ECM 1 ..... then there are 5 components that this fuse feeds
1-crank sensor
2- all injectors
3- ECM
4- electronic ignition control module
5- ignition coil - check for a bad wire in these areas. Hope this helps.

May 21, 2014 | 1997 Chevrolet Astro

2 Answers

Ecm fuse keeps blowing the second you start truck


What engine? Check the wiring under the air cleaner to the fuel injectors. It was pretty common for them to get pinched under the air cleaner and short out.

Sep 24, 2013 | 1989 Chevrolet S-10 Blazer

1 Answer

Why does my efi fuse keeps popping 1999 chevy prizm


Pull the EFI relay, replace the fuse, and see if it blows when you turn the key on. If it does not turn the key off, reinstall the EFI relay and remove the circuit opening relay/fuel pump relay. Turn the key on. If the fuse blows than we know the problem is One of the O2 sensors, the IAC, the purge solenoid, or the ECM You can unplug the O2 sensors, iac, and purge solenoid. Replace the fuse, turn the key on, and plug them in one at a time until the fuse blows. Replace that component. If the fuse blows with those unplugged than its probaly the wiring and possibly the ECM. let me know what you find and I'll help you more if needed.

Aug 05, 2012 | 1999 Chevrolet Prizm

1 Answer

Multiple fault emission codes


Fords require the fault to be present for two ignition cycles before it will turn on the check engine light. Unplug all the O2 sensors and then replace the fuse. If it stillbloys than you know the problem is in the vehicle harness. If it doesn't blow plug the O2 sensors in one at a time until the fuse blows. Replace that sensor. Posting the actual code or codes that are present would also be a good idea. Let me know if you have any questions and I'll do my best to answer them. Thank you for using FixYa.com!

Jan 21, 2012 | Ford Expedition Cars & Trucks

1 Answer

ECM I fuse keeps blowing in my 1996 1 ton gmc sierra 4x4 with a 454 v8 engine whats causing it


For the ECM 1 fuse to open you obviously have a short to ground , start with the injector disconnected and see if ECM 1 fuse still blows.If it does disconnect crank sensor, also inspect wires for the injectors or any rub through wires here is a diagram cansmo_178.gif

Sep 09, 2011 | 1999 GMC Sierra 3500

1 Answer

1997 yukon keeps blowing ECM-1 fuse, 20 amp. Ran for awhile after replacing, then blew fuse again, and again?


Hi, here is what runs on the fuse: ECM, injectors, coil, MAP sensor, crank sensor, IAT sensor, EGR solenoid. Of these, only the EGR solenoid has a delayed operation. Recommend you disconnect the EGR solenoid to see if the fuse will hold up. The solenoid is next to the thermostat housing as shown below. If the fuse doesn't blow with the solenoid disconnected, replace the EGR solenoid. Please let me know if you have questions and thanks for using FixYa.

jturcotte_830.gif

Jan 15, 2011 | GMC Yukon Cars & Trucks

1 Answer

Gages dont work, 20 amp fuse under hood keeps blowing. turn key motor turns but dont start


Is it the ecm fuse. Check the o2 sensor wires. On this model sometimes they rub on the rear driveshaft and blow fuses.

Jul 25, 2010 | 1996 Jeep Grand Cherokee

1 Answer

I have a lhs 1996 Chrysler. The car wont start and the engine fuze burns out.


I also have a 96 LHS that randomly blows the 20 amp ECM fuse. If this is what you are referring to, the problem may be in one of your ECM sensors. 1-Start by unplugging all ECM sensors (Temp, Cam, Crank, 2-O2, TPS, etc.) and replace the fuse. 2-Crank the starter (the car will not start) and see if the fuse blows. If it does you probably have an electrical problem with the ECM. 2-If the fuse does not blow, plug in only the cam sensor and start the car; it will idle rough and the check engine light will come on. If the fuse blows, the problem is the cam sensor or wiring to it. 3-Continue plugging in sensors one at a time and try starting. When the fuse blows, you will know which sensor and/or wiring to the sensor to check. This process of elimination has worked twice for me.

May 16, 2010 | Cars & Trucks

1 Answer

95 grandprix blows the 15amp fuel Injector fuse


crank or cam sensors have nothing to do with fuel delivery

Jan 12, 2009 | 1992 Pontiac Grand Prix

Not finding what you are looking for?
1990 Chevrolet Suburban Logo

Related Topics:

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6924 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...