Help!!! Poor Throttle response (Delay)

Tony91LX · 10-11-2001, 01:37 PM

I have two problems

The best way to describe this problem is you can hear the linkage and TB whistle open and then have a small but noticeable delay and then the car would rev. (some times a lean pop and even a drop in rpm then it would rev.)

The motor is also running real choppy, it used to be sooth, running a EFI 351W with an F-cam. Before you could put a bottle on the intake and it wouldn’t move, if you tried that now it would be thrown off in a few seconds, that’s the kid of difference I am looking at.

This problem started after I replaced my electronics on my C&L meter, TFI Module and Coil.

I put back my stock electronics same problem, put my old coil in same problem, I didn’t try replacing the TFI yet, and no codes.

Timing is correct, could it be that I didn’t reset my computer before setting my idle?

I am going to try resetting my idle tonight, any one experience this problem or hear of it before?

Thanks

slo95 · 10-11-2001, 09:51 PM

maybe the TPS? or that 10 pin connector?

Tony91LX · 10-12-2001, 05:45 AM

I reset my idle, didn’t help,

Replaced my TPS, didn’t help

Cleaned 10 Pins, didn’t help

This only happens, below 1200 rpm as soon as you get over that it seems to sooth out

ttt

Jeff7477 · 10-12-2001, 03:29 PM

Mine does the exact same thing when its cold, and it runs choppy all the time, I can't figure it out

Tony91LX · 10-12-2001, 04:12 PM

I am going to give the IAB Valve a good cleaning get a new PCV and check for vacuum leaks again.

My PCV was clogged this may be affecting my choppy idle,

The RPM thing I think is a combination of a bad TPS and bad idle setting, I used an old tps that I had around my house, I think a new TPS and some dielectric grease along with resetting my idle I think will do the trick.

I will keep this updated if I make any progress, I will solve this one way or another, because I want to install the T Trim that’s sitting next to the car. I am not going to put it in with this kind of problem.

Any additional input would be appreciated.

Thanks

10-11-2001, 01:37 PM	#1
Tony91LX Registered Member Join Date: Jan 2000 Location: Feeding Hills, MA Posts: 114	Help!!! Poor Throttle response (Delay) I have two problems The best way to describe this problem is you can hear the linkage and TB whistle open and then have a small but noticeable delay and then the car would rev. (some times a lean pop and even a drop in rpm then it would rev.) The motor is also running real choppy, it used to be sooth, running a EFI 351W with an F-cam. Before you could put a bottle on the intake and it wouldn’t move, if you tried that now it would be thrown off in a few seconds, that’s the kid of difference I am looking at. This problem started after I replaced my electronics on my C&L meter, TFI Module and Coil. I put back my stock electronics same problem, put my old coil in same problem, I didn’t try replacing the TFI yet, and no codes. Timing is correct, could it be that I didn’t reset my computer before setting my idle? I am going to try resetting my idle tonight, any one experience this problem or hear of it before? Thanks

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10-11-2001, 09:51 PM	#2
slo95 Registered Member Join Date: Dec 2000 Posts: 168	maybe the TPS? or that 10 pin connector?

10-12-2001, 05:45 AM	#3
Tony91LX Registered Member Join Date: Jan 2000 Location: Feeding Hills, MA Posts: 114	I reset my idle, didn’t help, Replaced my TPS, didn’t help Cleaned 10 Pins, didn’t help This only happens, below 1200 rpm as soon as you get over that it seems to sooth out ttt

10-12-2001, 03:29 PM	#4
Jeff7477 Registered Member Join Date: Jun 2001 Location: Lincoln, Nebraska USA Posts: 67	Mine does the exact same thing when its cold, and it runs choppy all the time, I can't figure it out

10-12-2001, 04:12 PM	#5
Tony91LX Registered Member Join Date: Jan 2000 Location: Feeding Hills, MA Posts: 114	I am going to give the IAB Valve a good cleaning get a new PCV and check for vacuum leaks again. My PCV was clogged this may be affecting my choppy idle, The RPM thing I think is a combination of a bad TPS and bad idle setting, I used an old tps that I had around my house, I think a new TPS and some dielectric grease along with resetting my idle I think will do the trick. I will keep this updated if I make any progress, I will solve this one way or another, because I want to install the T Trim that’s sitting next to the car. I am not going to put it in with this kind of problem. Any additional input would be appreciated. Thanks