i posted a thread up here not too long ago about having idleing issues with a new e-303 cam installed into my 1995 cobra! and i was advised to take it to get tuned because the 94-95 mustangs computers are picky with the e-303 cam! i took it in and got it tuned and a chipped installed to maximize the performance and IM STILL HAVING IDLEING ISSUES!
the dyno shop can't figure out whats wrong with it! they would test drive it and when the car comes to a complete stop then it would die!
Any ideas guys what the issue could be??????????
Last edited by Locct925; 4 Weeks Ago at 07:06 PM.
Reason: misspelling
A lot of the later computers do not like the tight LSA of the E-303 of 110 deg. The computers like to see 114-118 degs. Seems like retarding the timing 4 degs helps some. Hope this helps a bit.
Dave
A lot of the later computers do not like the tight LSA of the E-303 of 110 deg. The computers like to see 114-118 degs. Seems like retarding the timing 4 degs helps some. Hope this helps a bit.
Dave
Please.... don't misinterpret the following reply, but your comment regarding the E-303 is not correct, it is misinformation. Or does the CBAZA strategy include a camshaft LSA sensor?.... ..... there is no way the computer will know the camshaft LSA. BTW.... the E-303 is the only cheerleader cam with a CARB exemption.... as in emissions acceptable in CA.
OP, you need to go through the self tests, correct any failure codes that affect idle control, base idle calibration, valve train calibration, valve train geometry setting..... procedures. I have set SN95 systems w/out a tuner device or chip..... with cheerleader cams (B, F, X, E included), TFS1, Schneider, Comp Cams.... and no idle control problems.
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ACRONYMS:
LUK=Let Us Know, GL=Good Luck, LMK=Let Me Know, JIC=Just In Case, BTSTDTRT=Been There Seen That Done That Repaired That, YCYDYP=Your Car Your Dough Your Prerogative and the classic... DILLIGAS=Do I Look Like I Give A S***
1986 GT-X303 cam, 289 heads, 1.72, Holley 700cfm DP, RG 4+1 Trans.
[quote=Joel5.0;1778865]Please.... don't misinterpret the following reply, but your comment regarding the E-303 is not correct, it is misinformation. Or does the CBAZA strategy include a camshaft LSA sensor?.... ..... there is no way the computer will know the camshaft LSA. quote]
no there is no lsa sensor the problem is that with the shorter lobe seperation angle there is less vacum created and that is what screws with picky ecc.
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95 teal gt 5 speed-ffrp z spec t5,centerfore dual friction clutch, bbk adjustable clutch cable with firewall adjuster, BBK shorties, Hurst short throw, 3.73, ffrp c springs, high flow cats, flowmaster 40's, UDP's, cobra front 95 teal v6 vert- dual flowmasters 40's and cai. 93 lx 5-speed - sold
no there is no lsa sensor the problem is that with the shorter lobe seperation angle there is less vacum created and that is what screws with picky ecc.
OK..... is there a vacuum or MAP sensor in the CBAZA strategy setup... The answer is no..... therefore, how does it affect the strategy? If the ECM will never know what engine vacuum is, how does it affect its work?
__________________
ACRONYMS:
LUK=Let Us Know, GL=Good Luck, LMK=Let Me Know, JIC=Just In Case, BTSTDTRT=Been There Seen That Done That Repaired That, YCYDYP=Your Car Your Dough Your Prerogative and the classic... DILLIGAS=Do I Look Like I Give A S***
1986 GT-X303 cam, 289 heads, 1.72, Holley 700cfm DP, RG 4+1 Trans.
Have you checked the voltage at the TPS sensor during the erratic idle?
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95" Vert - 302 Stock
4.10 Gears, MM Strut Tower Brace, MM Subrame Connectors, MM Panhard Bar with Aluminum Rod,
H&R Race Springs, Tokico Illumina Front Struts,
Tokico Illumina Rear Shocks, MM Caster/Camber Plates, Eibach Front and Rear Sway Bars, Cross Drilled Slotted Rotors
Have you checked the voltage at the TPS sensor during the erratic idle?
IF you don't have a TPS failure code showing........ you do not need to worry about it.... nor should you be setting it to a mythical closed throttle value..... that too, is misinformation.
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ACRONYMS:
LUK=Let Us Know, GL=Good Luck, LMK=Let Me Know, JIC=Just In Case, BTSTDTRT=Been There Seen That Done That Repaired That, YCYDYP=Your Car Your Dough Your Prerogative and the classic... DILLIGAS=Do I Look Like I Give A S***
1986 GT-X303 cam, 289 heads, 1.72, Holley 700cfm DP, RG 4+1 Trans.
IF you don't have a TPS failure code showing........ you do not need to worry about it.... nor should you be setting it to a mythical closed throttle value..... that too, is misinformation.
I didnt say anything about changing the setting...just curious as to what it would be reading. Like you said, "dont take this the wrong way", not everyone is trying to spread bad info...Just collecting info to try and help troubleshoot the issue I dont assume to know more about FI than you Joel, Im still learning! and helping to find the answers to issues like these make us all better mechanics!
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95" Vert - 302 Stock
4.10 Gears, MM Strut Tower Brace, MM Subrame Connectors, MM Panhard Bar with Aluminum Rod,
H&R Race Springs, Tokico Illumina Front Struts,
Tokico Illumina Rear Shocks, MM Caster/Camber Plates, Eibach Front and Rear Sway Bars, Cross Drilled Slotted Rotors
1995 Mustang cobra with e-303 cam issues! 
..... there is no way the computer will know the camshaft LSA. BTW.... the E-303 is the only cheerleader cam with a CARB exemption.... as in emissions acceptable in CA.
... The answer is no..... therefore, how does it affect the strategy? If the ECM will never know what engine vacuum is, how does it affect its work?
I dont assume to know more about FI than you Joel, Im still learning! and helping to find the answers to issues like these make us all better mechanics! 
