Question about 1989 Chevrolet Suburban

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Prom chip problems

New computer and prom chip , check engine light still blinking ,drove for two days, still blinking ,throwing code 51

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  • 2 Answers

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

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Posted on Jan 02, 2017

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SOURCE: check engine light on took to auto zone and had

The light may have to be turned off with a scan tool. A misfire can happen once or twice and then vanish - maybe a single bad fuel pulse into the cylinder caused it. If it happens consistently then you'll need to look at it. For now though, have the light turned off and don't sweat it.

Posted on Nov 19, 2009

  • 5 Answers

SOURCE: I have a 89 Chevy Suburban 2500HD 2wd, with a

Intermitten problem, as vehicle is running the computer is continuely recording, while the error is happening the code is registered. After the problem is not happening the computer records new information and does not maintain the old. Fix, find a road long enough to get the error code and safe enough to shut off vehicle exactly at the time of the engine light goes off. Place a jumper wire in the A/B ports of the onboard access connectors under side of dashboard under steering columns. This will be a electrical plug in with ten ports, top to left ports are the ones to run a jumper across. Turn on ignition switch do not start, the check engine light will flash. First it will flash once pause flash twice, this is the function code that lets you know the system is working. This will repeat 3 times, watch the code after that. Will work in same way first digit of code will flash and then pause second flash count is second digit of code.

Posted on Nov 19, 2010

SOURCE: 1989 Chevy astro van rapid flashing engine light

I have the same problem..flashing light 6 quick..1 solid...repeats..but the manual only goes to 4 quick..1 solid...:(

Posted on Jun 18, 2011

  • 1 Answer

SOURCE: I started my 2006 chevy cobalt this morning and it

This is more of a question, searching for a solution. My car started doing the same thing of rough idle, engine light blinking, etc. I replaced the coils, all the spark plugs and all the rubber conductors. My electric fuel gage is really off compaired to the actual fuel gage. The top speed my car will go is 40mph. I even put "HEET" in my gas tank to see if that would help. Looking for answers please.

Posted on Dec 30, 2011

  • 169 Answers

SOURCE: check engine light comes on with no trouble codes

Is it possible to have any kind of engine or emission related fault codes but not have a Check Engine Light come on? Thanks.

Posted on Jul 26, 2012

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What codes are these to 1994 geo panel blinks two numbers 42 and 51

Ignition bypass error.42,incorrect MEM-CAL 52.

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We had a dodge dakota with the same symptoms and they found a corroded pin on the main connector to the ecm . I think P1682 is low voltage from the charging system. Hope this might help.

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Just bought a 2002 Saturn SL and it did fine for a couple of days and then the Service Engine Soon light came on. I drove it for a couple of days like that with no problem and then the next day I started...

You need to have the fault codes read with a OBD2 code reader or scanner, that is how you find out what system in the computer controlled engine is acting up.

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Code 34 and 51

Code 34 is for the MAP sensor voltage being low which means the sensor is unplugged or faulty. Code 51 is for a problem with the memory chip inside the computer.
If the engine computer is failing it could set the code 34 even if nothing is wrong with the MAP sensor.
The computer and MAP sensor would need to be checked out.

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1990 Chevy Carprice won't start no check engine

check pcm fuse sound like could be pcm problems have vechicle code scan look for code 51 which is faulty prom mem cal or ECM PCM

May 21, 2013 | Cars & Trucks

1 Answer

Check engine light stays on. changed oxygen sensor, pcv valve, coolant sensor, switched out PROM chip, and cannot get a code to blink. replaced all hoses coming off carb. smog pump and egr valve been...

what you could start with is checking to see what trouble codes are being logged for this vehicle...if the engine light stays on, it means the ecu is registering a the means of a trouble the trouble code doesnt tell you how to fix it, but it does give you the direction to go down...judst wondering if you have tried to obtain the trouble codes

Aug 26, 2010 | 1981 Chevrolet Corvette

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Ck engine light on - no code

Check engine light with no codes usually means a PCM reset is happening. EBP shorting, ICP shorting, aftermarket "performance chip". PIDS need to be monitored to eliminate sensors. IDMs (Injector Driver Modules) can also cause this. IDM's are separate from the PCM/ECM (engine computer).

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Check engine light code 51

there is a code 51 first of all, try putting octane boost in the tank, there has been several completes all across the country of watered gas, i have a 96 and a 95 neon and within days of filling both up the code 51 came up. the boost helped 1 and the MAP sensor had to be replaced on the 96. hope this helps

Aug 09, 2009 | 2005 Dodge Neon

1 Answer

Check engine light

Bad ecm (engine control module) or prom chip issue. Prom is located inside ecm QDM is quad driver module which is electronic portion of ecm. Would replace ecm first remebering that prom chip must be swapped from old box to new.

Mar 15, 2009 | 1994 Chevrolet Corsica

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