joehonda1129

i had this honda 1992 dx civic non-vtec stock motor siting for 3 month finaly replace the ecu and the car started up just fine but the exhaust was spiting out black smoke. so i did spark plugs and wires,oil change about 2 times,and try to drive it agian same thing still have black smoke. It drives but im not sure if its ok to drive it like this, or why its been happing can some one plz help me its my only car and i dont want to blow the motor.

B serious

iTrader: (1)

Well it's hard to E-fix a car with the only information saying "it blows black smoke".

BLACK smoke means it's running very very rich. So start from there.

Are you sure it's black smoke?

Grayish white means either rich mixture, or burning oil slightly.
Blue means burning oil moderately to extensively
White means burning coolant


They all look pretty similar (except for straight up black smoke), but the smells and the intensity of the smoke/color tells the story. You kinda have to know what to look for.


Do you have a Check engine light on? If so, what is the code?

Try taking it somewhere if you can't figure it out.

joehonda1129

yes i do have check eng light on and Trust me its black deep black and the back of my car is black too now lol and i took it to autozone to get the code but they said they dont do 1992's

Padawan

https://honda-tech.com/zerothread/1901557

B serious

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joehonda1129 &raquo;</TD></TR><TR><TD CLASS="quote">yes i do have check eng light on and Trust me its black deep black and the back of my car is black too now lol and i took it to autozone to get the code but they said they dont do 1992's</TD></TR></TABLE>

Yeah they only check codes for 96+ vehicles. It's a lot easier.

There's ways to flash the code yourself. I think padawan gave you that link. You have to find out what the code(s) are for, and then go from there. Your car can sometimes tell you what's wrong with it. You just have to figure out what caused it.

Fix the cause, not the effect.

mmafighter130

hey man its very easy to check the codes on your own heres how to do it:

behind the glove box (near the ecu) there is a green 2 pin connector. If it hasnt ever been messed with it will have a filler plug, remove the filler plug and use a paper clip or piece of wire and jump it across the two pins. The cel light will begin blinking and you have to count the number of blinks. Reading the blinks can be tricky for example: if the cel blinks twice and then there is a short pause and it blinks once that is a 21, if it blinks 3 times and pauses briefyly and blinks 6 times it a 36, and so on, single digit codes will blink that many times without pause. You can then goto the haynes repair manual and look up the code. The way you described the symptoms it sounds like a map sensor, or a busted injector.

joehonda1129

well i did wut u guys told me to do and there was no flash at all i even got so mad i cut the wires and join them together still did not flash wut do i do now?

B serious

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joehonda1129 &raquo;</TD></TR><TR><TD CLASS="quote">well i did wut u guys told me to do and there was no flash at all i even got so mad i cut the wires and join them together still did not flash wut do i do now?</TD></TR></TABLE>

put the wires back together.

take it somewhere.

joehonda1129

ok thxs for the help u guys try to give me