[diluxe]

what do you guys normally check on your car with vcds to ensure everything is running properly engine wise, are there any common mesuring blocks or basic settings you regularly check.

thanks

 

[CorradoR32]

I think you're the guy with an engine conversion aren't you?

If it's a MK4 engine, check measuring blocks 208/209 and make sure the KW number is less than 8.

 

[JamesBaby]

Block 032 in Engine. Shows your fuel trims. Will tell you if you have a bad MAF, vac leak, or over fueling (poss O2 sensor) issue.

 

[diluxe]

I think you're the guy with an engine conversion aren't you?

If it's a MK4 engine, check measuring blocks 208/209 and make sure the KW number is less than 8.

Yes mate I am , had the car on the rollers the other day and i put down 256 brake and 258lb ft of torque, and then on the next next run made roughly 20 bhp less brake and less torques, so i'm in investigation mode as the result is representative of how the car behave on the road , you can feel the difference one journey to the next when its happy and when its not.

 

[diluxe]

Block 032 in Engine. Shows your fuel trims. Will tell you if you have a bad MAF, vac leak, or over fueling (poss O2 sensor) issue.

thanks I will definitley put this to use later. what are the ideal target numbers i should be seeing?

 

[CorradoR32]

What's a normal number for a healthy 032 measurement James? I haven't checked mine yet.

Diluxe, 258hp is pretty good! Is it a standard engine? Any fault codes when the 20hp cut happens?

Have a look at the real time lambda measuring blocks too, I can't remember the block numbers, maybe James will know.

Look for any wild percentage deviations. Anything more than 20% trimming is bad, but a decent engine is usually around 1-2% at idle an no more than 10% under normal driving.

 

[diluxe]

Yes mate standard engine

Just pulled up measuring block 032 and the percentages do not change from 0.00% at idle or on the move, I assume these should change ?

 

[JamesBaby]

Yes mate standard engine

Just pulled up measuring block 032 and the percentages do not change from 0.00% at idle or on the move, I assume these should change ?

Block 032 is not supposed to change on the fly. It is a long term fuel trim and adjusts itself over time and driving conditions. 0 at idle is good.

 

[diluxe]

Thanks James; i must have cleared any errors and that put the readings back to Zero, i'll let it run for a couple of days and will check back over the weekend to see what the readings are.