topfig1

iTrader: (5)

Car is hesitating and thowing MAF, MAP, TPS codes. Everything is pluged in and I double checked. I even made a bracket for the MAP sensor on back of the LSX intake. Could it just be it needs tunning. I drove it from Oceanside to Miramar (30 miles) and when ever I got on the gas like up a hill, it would backfire and slowly acclelerate. Any ideas from the Gurus? I am supposed to dyno tune tomorrow.

Fig

topfig1

iTrader: (5)

t t t

z28drag

iTrader: (19)

more air you need more fuel. of course you need to retune your going to lean out the motor if not done already. good luck.

topfig1

iTrader: (5)

I know it needs retunning, but I am getting MAF,MAP and TPS sensor codes and instead of being lean, it is pig rich.

Fig

camaroextra

iTrader: (10)

you havent gotte in tuned after you had a head swap?!?!?!? what?!

topfig1

iTrader: (5)

Guy's it is on the dyno as I sit here and type. So enough about the damn dyno tune. When you add heads, intake and larger throttle body the engine should lean out. It did not, it is running rich. which is washing the cylinder wall out and causing hessitation and misfire. I ran the codes and it showed,MAF<MAP and TPS. If there is anyone out there with experiences like this after a had swap, please chime in.
Fig

topfig1

iTrader: (5)

Well, it turns out that several of the vacuum hoses on the back of the LSX intake came undone and the MAP sensor plug was not all the way in. That will make an LS1 run like crap. Running good now and will finish the dyno tune on Monday. Can't wait.

Fig