Search the Community

2001 250 GT problem Hi All, If I have this in the wrong category, please shift it across as necessary my 2001 250GT has a miss which I presume is a spark plug issue as I don't think they have been changed for a very long time - my daughter previously owned the car.... it has 180,000 km and is in fantastic condition except for the miss, which is worse on start up but seems to improve slightly once it warms up. that would normally suggest a sensor problem, rather than spark plugs, but my daughter had the vehicle tested by a service shop and they say the codes suggest bad spark plugs. i will be in Auckland late November from my home in Canada, and i intend to start by replacing the plugs and then go forward from there. My questions are as follows: 1. What is the preferred sparkplug for this car? 2. From what I can see it needs a special long sleeve plug wrench. Are they readily available in NZ or should I buy one online? 3. Any other hints or tips that may help? I assume it will be a tough job to get the back three plugs out. thanks al Gill Edmonton Canada

I will state that i have spent a good while searching the forums before posting this. I just picked up my 99 stagea 260 rs from port on Monday and drove it the 9xx kms home Tuesday. Turns out it was overfuelling pretty bad in pulls from 1-3 gears. I didn't try any other pulls as we took it easy on the way back. So didn't realize until we were 2 hours away from the city and tuning shops. At full boost it makes a ping/miss, it was hard to hear in the car with windows up but almost like a sputtering or metal rattling sound when in a tunnel, was going to blame fuel but it wasn't detonating and i was running 94 oct. The cel was flashing as well when it hit full boost. The p.o has upped boost to 14lbs/1 bar as well. It idles great tho today I was playing around and i noticed that at 1500 rpms it makes a noticeable shake then lessons as you increase the revs. Also i should note that after I noticed the apexi bcv (not on the auction sheet) that its running an apexi power fc, with no controller... I took the air box apart and cleaned the mafs last night. There was lots of oil in the box and lines going to the compressor. I now have to add a catch can to immediate mods. The mafs looked like they were dipped in chocolate.. So im going to do spark plugs. Before I do that I want to test my ignitor and my coil packs. I took one coil off and it looked in great shape and the spark plug looked new?. After reading and searching these are what came to mind. Spark Plugs -If boost is upped to 14lbs and the plugs were just doneor stock plugs were used I heard that the stock gap is 1.1mm and that running more than 12lbs a gap of 0.8mm is recommended. That could be one cause? I don't know if that would cause the over fuelling? would it trigger the cel? It would explain the miss but not pinging/detonating? also cause the miss at 1500 rpms? - Bad coil pack or ignitor? My plan is to check them tomorrow i guess either one would cause a miss as well, Tho would that unspent fuel be enough to puff a decent black cloud after a pull? -Stuck injector? I now have to order the apeci power fc controller or cable and software,, and the nearest tuner is 900 kms away Or else i would of pulled the code.. Any other ideas. I know a read on the ecu would help with what sensor is going off at full boost