please help

[briteway]

When was the last time spark plugs were changed?

If the car didn't have a major service done recently, you should order the necessary parts and all new sensors and have it done yourself and save big $$$ and all for under $500. At least you'll know what's been done.

[nazz]

Originally Posted by briteway

When was the last time spark plugs were changed?

If the car didn't have a major service done recently, you should order the necessary parts and all new sensors and have it done yourself and save big $$$ and all for under $500. At least you'll know what's been done.

spark plugs were changed about 2 yrs ago i put iridium spark plugs in and ive only done 15000 km since i put them in im hoping its 1 of the sensors

[parkerm13]

So after I have had a full engine rebuild and a gearbox service, with mega expensive Mopar oil.. I have 2 oxygen sensor error codes P0700 error code which is the gearbox, my airbag light is on all the time, engine sometimes shows oil pressure, most times not though=not happy after spending over $8k on getting all this right!!! My new bonner struts worked a treat though from ebay...$30...happy bout that...not happy bout the rest

[briteway]

Ouch! I hope you get to the bottom of that nightmare

[briteway]

Originally Posted by nazz

spark plugs were changed about 2 yrs ago i put iridium spark plugs in and ive only done 15000 km since i put them in im hoping its 1 of the sensors

Your spark plugs should be alright for a long time.

I'd check those sensors. Does anything else happen besides what you described above? Does it fluctuate in RPM's when idling, both in D and N?

[briteway]

Another think came to mind, does the problem come every time you accelerate or only when cold?

If it comes every time you accelerate then maybe one (or more) ignition coil isn't working properly? I don't know of any way of testing except the good 'ole way. You have to be careful as it is quite dangerous if you don't know what you're doing.

Take the coil of the plug and instead of removing the plug, get another one to save hassle. Put it in the coil pack (make sure it in properly) and hold it with your (insulated) pliers (don't muck around like I did long time ago and got a massive zap!).

Then hold the plug somewhere grounded (away from your computer), best place is against a bolt on an engine block. Get someone to crank the car while you're holding it securely. If you see a blue spark on the tip of the plug then your coil is good. Check each coil, one by one and make sure they're OK.

I don't know of any other way of testing this.

[turbomart]

Originally Posted by nazz

ive done a error check but nothings come up however the same problem occured and this time what ive noticed during this problem was that in the dash it showed my fuel usage was on 99L which gradualy dropped back to normal after a while

I believe fuel usage is calculated by comparing odometer reading to fuel injector duty cycle, so it could mean that the injectors pulse is bieng interupted momentarily.This may point at faulty crank angle sensor.