S13 backfiring, runs like sh!t

[Echonova]

Exhaust system backfires occur in engines that have an emission system malfunction, like an air injection system diverter valve problem, an exhaust leak, or when the catalytic converter has been removed. In some high-performance vehicles, when a driver shifts up and lets off the accelerator, the engine has a moment of running rich. This causes an incomplete burn which causes the fumes to explode in the exhaust system along with an audible clacking sound. However this condition is a result of working smog equipment, and is unlikely to cause any damage.

A fuel injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective.

Common causes of backfires are:

* Poor or unregulated engine timing is often a cause of intake backfires, but can also be responsible for exhaust backfires
* Improper wiring in the ignition can also lead to timing issues and backfires
* Low fuel pressure, clogged fuel filters, and weak fuel pumps could cause a severe lean air-to-fuel ratio during fuel injection
* Missing or damaged catalytic converter can result in backfires out the tailpipe

[Me86Rob]

Exhaust system backfires occur in engines that have an emission system malfunction, like an air injection system diverter valve problem, an exhaust leak, or when the catalytic converter has been removed. In some high-performance vehicles, when a driver shifts up and lets off the accelerator, the engine has a moment of running rich. This causes an incomplete burn which causes the fumes to explode in the exhaust system along with an audible clacking sound. However this condition is a result of working smog equipment, and is unlikely to cause any damage.

A fuel injected engine may backfire if an intake leak is present (causing the engine to run lean), or a fuel injection component such as an air-flow sensor is defective.

Common causes of backfires are:

* Poor or unregulated engine timing is often a cause of intake backfires, but can also be responsible for exhaust backfires
* Improper wiring in the ignition can also lead to timing issues and backfires
* Low fuel pressure, clogged fuel filters, and weak fuel pumps could cause a severe lean air-to-fuel ratio during fuel injection
* Missing or damaged catalytic converter can result in backfires out the tailpipe

its this

[Wildebeest]

its this

ok rob, can you tell me how to check and see if the MAF is bad? and I got another question. are you the same rob that works down in powder springs with a dude named turbodave?

[Me86Rob]

ok rob, can you tell me how to check and see if the MAF is bad? and I got another question. are you the same rob that works down in powder springs with a dude named turbodave?

no im not that Rob.
Its hard to diagnose a MAF, but first things first, check the inside and make sure that the little fillament is still intact. If it is, you are more than likely going to just have to replace it and see if it is. If its not intact, then you know thats your problem. So you may have to guess and check

[Wildebeest]

no im not that Rob.
Its hard to diagnose a MAF, but first things first, check the inside and make sure that the little fillament is still intact. If it is, you are more than likely going to just have to replace it and see if it is. If its not intact, then you know thats your problem. So you may have to guess and check

aight man, ill give that a try. Thank you

[HMGDRFTER]

no im not that Rob.
Its hard to diagnose a MAF, but first things first, check the inside and make sure that the little fillament is still intact. If it is, you are more than likely going to just have to replace it and see if it is. If its not intact, then you know thats your problem. So you may have to guess and check

it's not hard to diagnose a MAF just read what i told you on your other thread.