weird idle help me

[OldLadyKiller]

thanks for the help, i never let it lug but i will try shifting higher today. problem is i have to wait like 2 seconds for the RPMS to drop before i go into 2nd because of my little problem i told u about earlier. it looks like its the intake manifold. how much would that be to replace?

[rallyman]

These cars have a common problem with the Throttle Position Sensor (TPS) and it could cause the problem you have. Getting the CEL read should point you in the right direction. The TPS originally on the car would be made by Dae Sung. The replacement for these was made by Kefico and is much more reliable.

I doubt it is the intake manifold itself. I've never heard of a cracked intake manifold. It could be a failed gasket causing a vacuum leak.

[OldLadyKiller]

right now it sucks to drive cause the RPMs basicly go up when i try to upshift. im taking it to someone tomorrow. can i just take this car to any mechanic? i know the guy im taking it to does work mostly on domestics.

[ericmichael]

yeah dont owrry about it...its a sensor...if theres a cold air intake it could be your mas airflow sensor..mine did it awhile back..I had to frig around with the sensors (clean them etc) and it worked fine...most likely its your throttle position sensor..but just put it on a scan tool and that will tell you your problem..its nothign serious

[4g64fiero]

Originally Posted by rallyman

These cars have a common problem with the Throttle Position Sensor (TPS) and it could cause the problem you have. Getting the CEL read should point you in the right direction. The TPS originally on the car would be made by Dae Sung. The replacement for these was made by Kefico and is much more reliable.

I doubt it is the intake manifold itself. I've never heard of a cracked intake manifold. It could be a failed gasket causing a vacuum leak.

I've went through that in the past as well(tps issue), when I put on a 1g eclipse TB I messed up the tps and it cause the same issue as a bad maf, bad cts, bad FPR. It could be numerous things.. .. .. I got the replacement ands its given me no such issue.

Why doesnt the mechanic do a boost leak test where he pressurizes the intake manifold and see if it holds? Theres no point in ripping out gaskets just cause they "think" that theyre bad.

My high flow fuel pump only flows more when theres a need for it, theres currently not a need so I get the same gas mileage as if I didnt have it.

[OldLadyKiller]

Originally Posted by 4g64fiero

I've went through that in the past as well(tps issue), when I put on a 1g eclipse TB I messed up the tps and it cause the same issue as a bad maf, bad cts, bad FPR. It could be numerous things.. .. .. I got the replacement ands its given me no such issue.

Why doesnt the mechanic do a boost leak test where he pressurizes the intake manifold and see if it holds? Theres no point in ripping out gaskets just cause they "think" that theyre bad.

My high flow fuel pump only flows more when theres a need for it, theres currently not a need so I get the same gas mileage as if I didnt have it.

he sprayed some stuff on it and it made the engine rev...

[OldLadyKiller]

it turned out to be a gasket or something. ended up costing 185 dollars

[dohc120]

you should accelerate with the pedal down 75% of the way to the floor and shift around 3500RPM for best gas milage. Road & Track

[kennman]

Originally Posted by OldLadyKiller

it turned out to be a gasket or something. ended up costing 185 dollars

sorry , i know it's an OLD thread, but i'd really like to know, WHAT GASKET was the problem? and you got rid of the idle up'n'down problem?
thanks
Igor