THIS SEEMS TO BE GOING AROUND! - Page 2 - ZR-1 Net Registry Forums

mike100 · 04-17-2012

Quote:

Originally Posted by oricale

Allright...shouldnt the IAC disconnected make the engine react???...when I unplug mine, nothing changes....(and its new)

if you unplug it while it is 100% closed- it will just stay closed, won't it?

a scan tool will tell you its position with iac count values. zero is maxxed out- blocking the port completely.

oricale · 04-17-2012

Allright so I checked the cruise...no change

I plugged the airhorn and the engine stalled so I dont think I have a vacuum leak.

still surging!

phrogs · 04-17-2012

I have that same pedal feel in my car at times usually low mph and just trying to push a little more and it feels like its stuck and then bam your hitting the gas hard. I have a ported throttle body as well.

secondchance · 04-17-2012

Quote:

Originally Posted by USAFPILOT

I have a plug wire that keeps backing off the plug causing a miss every now and then.

Just in case, check and make sure the spark plug is still torqued correct. I had a pulg boot that kept popping off and turned out to be a cylinder leak caused by a loose plug.

oricale · 04-17-2012

ALTHOUGH !! I did get a 22 code this time..its the TPS sensor voltage under .24 volts at one point BUT....I have checked it and it is at .55!

mike100 · 04-17-2012

Quote:

Originally Posted by oricale

ALTHOUGH !! I did get a 22 code this time..its the TPS sensor voltage under .24 volts at one point BUT....I have checked it and it is at .55!

if you have a bad tps pot or a loose connection, I'm sure that is playing havoc with the control loop in the ECM idle strategy.

XfireZ51 · 04-18-2012

Quote:

Originally Posted by oricale

Allright...shouldnt the IAC disconnected make the engine react???...when I unplug mine, nothing changes....(and its new)

If you unplugged the IAC and it was already at 0 steps, it won't make any difference. So the IAC is not controlling idle suggesting that there is enough air(too much actually) coming through the TB. If you don't have a leak, could be the Min Air or the throttle blades.
BTW, unplugging the IAC will require you to do the IAC reset procedure.

oricale · 04-18-2012

How does one do that?

04-17-2012	#12
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: THIS SEEMS TO BE GOING AROUND! Allright so I checked the cruise...no change I plugged the airhorn and the engine stalled so I dont think I have a vacuum leak. still surging! __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation

04-17-2012	#13
phrogs Join Date: Jul 2004 Location: Kalamazoo MI Posts: 1,753	Re: THIS SEEMS TO BE GOING AROUND! I have that same pedal feel in my car at times usually low mph and just trying to push a little more and it feels like its stuck and then bam your hitting the gas hard. I have a ported throttle body as well. __________________ JOHNNY P Currently own 90 ZR-1 #845 DRM 500 engine package 90 #226 Parts car Hit me up if you need anything.

04-17-2012	#15
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: THIS SEEMS TO BE GOING AROUND! ALTHOUGH !! I did get a 22 code this time..its the TPS sensor voltage under .24 volts at one point BUT....I have checked it and it is at .55! __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation

04-18-2012	#18
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: THIS SEEMS TO BE GOING AROUND! How does one do that? __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation