I just cleaned my TBs and now I have a check engine lite??? 95 J30t

[Gerardjg]

I just cleaned my throttle bodies with carb cleaner per the instructions onQ45.org. When I was done It took about 4 attempts to start and finaly with the gas pedal to the floor it started. A lot of white smoke and then I took it for a ride. About 10 miles of driving my check engine light came on (Code 32). Did I damage something with the carb cleaner, Or where should I begin to solve this

Thanks in Advance

95 J30t 120,000 miles

[goody90q45]

About 10 miles of driving my check engine light came on (Code 32)

Code 32 is EGR Function. Did you disconnect and clean the EGR valve when you cleaned the TB? I'm not familar with the J engine (I'm hardly familar with my engine) but the EGR valve, ports and associated hoses on the Q were pretty simple to disassemble and clean. Do a search in the J30 forum, there were a few writeups on EGR issues as well as how to clean and test.

[Gerardjg]

I have not touched any egr parts yet The car was running beutiful all I did was clean the TBs, I just took it for another ride and the lite did not come back on but the car is running real rough at low rpms and idle. the idle is 2-300 rpm higher then before cleaning the TBs.

A third start after cleaning and I got the check engine light again as soon as it started. this time it was code 51 and 31. I reset ecu & went for a short ride it is still running rough but I did not get the engine lite again. Shut down and started up several times and no light Idle goes to about 1200 on start then comes back to 800 after a few seconds.

Any suggestions would be greatly appreciated

The wife just told me that if I would leave the hood closed I would never have any problems!!!!
Modified by Gerardjg at 6:42 PM 3/25/2006

[elwesso]

Dont let this get you down... Seriously, we'll get through this Stuff like this happens all the time, its likely something simple.. Only a very basic understanding on how electronics work is required. The hard starting thing you listed is common after a TB clean, often the excess floods the engine.

Now that my Dr. Phil moments are taken care of for the year, on to business. Code 51 is related to INJECTOR, NOT to be confused with code 45 INJECTOR LEAK...

heres what I would do, its obvious some of your injectors are not "on line"... Bust out your digital VOM (you have one right?? YOU HAVE ONE, RIIIIIIIIGHT? , if not go grab one at walmart for $15, thats what i use)... Obviosuly the easiest way for you to determine whats up is to do a power balance test but you cannot do that, so lets do the next best thing.. We're not going to worry about the code 32 EGR just yet... its for tree huggers anyway, i bet something got on the sensor to make it start acting funny, i doubt thats an issue to concern yourself with at the time.

Bust your VOM out, and ohm test each of your 6 injectors AT THE ENGINE SUBHARNESS... If any of them produce an open circuit, then you can assume you bumped one of the connectors. if you DO NOT have a VOM, check the injector connetions near the TBs...

[Gerardjg]

Bust out your digital VOM (you have one right?? YOU HAVE ONE, RIIIIIIIIGHT? ,

Bust your VOM out, and ohm test each of your 6 injectors AT THE ENGINE SUBHARNESS... If any of them produce an open circuit, then you can assume you bumped one of the connectors. if you DO NOT have a VOM, check the injector connetions near the TBs...

Hello Wes

I did that last night here is what I Got

1---- 11.72---- 11.93---- 124---- 12.15---- 11.96---- 11.8

I am going to pull the plugs now and see if they got fouled up New plugs installed in December but they are BOSCH P+4 (installed before I found thisgreat forum)

After I reset the ECU if the problem still exist the engine light should come on again right???

[elwesso]

Thign is that if its STILL throwing an injector code, that means something electrical is bad...

Do you have the FSM so you can go through the diagnostic procedure?

[DominickJ30]

The idle is adjusting itself to the new engine conditions, ie card cleaner.

You are not supposed to use carb cleaner on a TB vehicle either. It contains chemicals which take the films off certaing TBs. Use throttle body cleaner.

What you probably did is foul your plugs out. Now would be a good time to get some Seafoam or BG intake cleaner and do that service. Then change the plugs and oil. Car should run like a beast.

To get started remove and inspect the spark plugs. A picture is worth 1000 words .

[Gerardjg]

What you probably did is foul your plugs out. Now would be a good time to get some Seafoam or BG intake cleaner and do that service. Then change the plugs and oil. Car should run like a beast.

To get started remove and inspect the spark plugs. A picture is worth 1000 words .

Changed the plugs this morning (NGK PFRG11), they were totaly covered with black soot.I also removed and cleaned all electrical connectors in the system. The car is now running better then it ever did for me, Idle is back to normal. I took the car for about a 100 mile ride mostly at 60-70 hit low 90s when I could. The check engine light never came on and the engine is running smooth.

I have BG44k in the gas tank now. A question on the intake cleaner- where is the best place to put it in on a J? I will tackle the oil next weekend.

Thanks for your helpG

[elwesso]

if you wanna use seafoam, put it through the brake booster.

[Gerardjg]

if you wanna use seafoam, put it through the brake booster.

How do I get it into the brake booster.

Just Kidding

Thanks for your time