Question about 2004 Acura MDX
I have a 2004 MDX that won't pass emissions test because it as codes that say there is a misfire on all 6 cylinders. I took the car to the dealer awhile back because the engine light came on along with the VTM light. They cleared the code and said it was bad gas, but the light kept come back on. one time they said it was because of a bad battery, so new battery put in and the code came back again, still misfireing on all cylinders. is there a TSB's that I can get to help me understand and fix this problem, the dealer wants $500 to do a top engine clean and reset the valves . I can renew my lic. sticker until I can get this fixed...Rob
SOURCE: Hi, I have a 1997 Porsche
misfire :-------- try checking your 02 sensors /fuel pump and filter.
for 51 cylinder misfire :---
Change the coil. Period. Very easy to remove from the vehicle if it's a 4 cyl. Follow that spark plug wire from the spark plug to the other end. What it's attached to you should replace
for 54 cylinder 5 misfire :---First you have to eliminate the most obvious problems, like spark plug and spark plug wire. If you replace those and you still have a misfire, then it's a good idea to look for a vacuum leak in the intake manifold
Posted on Mar 07, 2009
Look at the coil pack, these are known to develop cracks, usually on the underside in the resin, you have to remove it to tell. It is much easier to reomve with the wiper cowl removed.
Posted on Apr 12, 2009
TSB means technical service bulletin, the are bulletin that refer to a certain problem with the car
you should contact your dealership and tell them about the TSB
number, they will tell you about the warranty if it applies.
Posted on Jul 01, 2009
SOURCE: cylinder misfiring
The cheapest and easiest way to remove a possible cause is to put a set of new, good quality spark plug wires in there. Bad wires, especially where they snap onto the top of the plug, can cause misfires. Do not mix up the firing order, replace one wire at a time.
Posted on Nov 14, 2009
Check the ICM for a good ground.....I think that this engine also had a recall for the ICM...It is located under the coil pack...Its worth a look...
Posted on Feb 12, 2010
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