Hi guys i was wondering if you could help me with a problem that is not for a 300zx,i know it's a bit of a cheak but my son has a 200sx and it slightly overheated the other day due to him fitting a greddy breather tank wrongly thus mucking up the circulation ,anyway steam was coming out of the expansion tant right next to his blitz induction filter,now the car will not fire up,iv'e checked that fuel is getting past the filter,and iv'e checked that there is a spark at the plugs,could the steam have mucked up the maf,thus screwing with the fueling?any ideas would be much appriciated,i was going to buy a second hand maf and try that but wondered if you had any thoughts cheers guys i know it,s not a Z but it is his little brother,anyway you guys are so bloody clever that i thought if you lot dont know who will LOL. :bow:

What model is it?

You could try another MAF but I doubt it - after overheating I'd be doing a compression test...

You can fit a z32 maf to a 200sx with a few mods. The water may have burnt out the maf but the car should still start without it. When mine burnt out the car would drive ok but was overfueling

You could try another MAF but I doubt it - after overheating I'd be doing a compression test...

i dont think its the gasket because it didnt overheat enough to make the temp gauge go up and when we drove it home it would run fine then it would loose power so you would have to drop it down a gear then it would pick up ok,then this morning i went out to start it up and it started first time but then just died after ten seconds and now wont start again, it,s got a metal 1.2mm gasket in it so pretty strong?

Its not the HG thats the issue, its the head wapring when it overheats - everyone knows how 'good' ( :rolleyes: ) the stock nissan temp guages are... I'd do a comp test just to be sure. Also check any electrical connections around where the water was leaking. It may be that the maf has flooded the engine. Have you tried removing all 4 plugs and cleaning them? While they're out crank the engine for a few seconds to clear any built up fuel in the chambers.

Its not the HG thats the issue, its the head wapring when it overheats - everyone knows how 'good' ( :rolleyes: ) the stock nissan temp guages are... I'd do a comp test just to be sure. Also check any electrical connections around where the water was leaking. It may be that the maf has flooded the engine. Have you tried removing all 4 plugs and cleaning them? While they're out crank the engine for a few seconds to clear any built up fuel in the chambers.

cheers andy i looked at the plugs and they didnt seem wet but will check again and crank the engine,if the maf has flooded the engine does it mean the maf is nackered and so needs replacing,cheers Ian

Not necessarily - it may still be wet and causing the engine to over fuel. Once dry it may well be fine (if that is the cause of the problem) :)