name this problem if you can

Coboose003 · Oct 12, 2011

ok so heres the issue i have a 1990 fox body and i have a ford racing cobra intake and plenum, 24 pound injectors, msd distrubtor + coil, and bbk cold air intake i am having a problem with my car stalling while driving within 3-5 mins and sometimes when i come to a stop or just sitting at a light it will die unless i put the car in neutral (automatic )i get a check engine light at certain rpms couldnt tell off the top of my head but its a pretty big range of rpms that i get it in also i know ill get one after its been running for a little bit and i come to an idle i didnt have this problem before i put the msd distributor so its something to do with adding the preformance parts to it im assuming ive also checked my plugs and noticed i am running lean (i dont know how to fix that) i think i may need a tune but dont want to throw that kind of money at it till i get new heads and a cam

Kdubslugga · Oct 13, 2011

You dont need a tune with only that minimal stuff done. Have you pulled the codes yet? If not do it. Go to autozone or anywhere and write down every code you have stored in there and let us know, they do it for free. Also, you have 24 lb injectors, did you do anything to your mass air meter to calibrate it?

Coboose003 · Oct 13, 2011

i do not know what kind of maf it has on it because it came with the 24 pound injectors on it when i bought it so i have no idea if they bought the matching maf sensor also but ill look in to it when i get the codes ran tomorow

joncash · Oct 13, 2011

Coboose003 said:
ok so heres the issue i have a 1990 fox body and i have a ford racing cobra intake and plenum, 24 pound injectors, msd distrubtor + coil, and bbk cold air intake i am having a problem with my car stalling while driving within 3-5 mins and sometimes when i come to a stop or just sitting at a light it will die unless i put the car in neutral (automatic )i get a check engine light at certain rpms couldnt tell off the top of my head but its a pretty big range of rpms that i get it in also i know ill get one after its been running for a little bit and i come to an idle i didnt have this problem before i put the msd distributor so its something to do with adding the preformance parts to it im assuming ive also checked my plugs and noticed i am running lean (i dont know how to fix that) i think i may need a tune but dont want to throw that kind of money at it till i get new heads and a cam

Kdubslugga is right, there isn't much reason for the vehicle to be having issues based on the mods you have listed there. In addition to his question about the MAF sensor, do you know what ECU the car has? If it's the original, the MAF definitely needs to be calibrated correctly.

Also, your paragraph is very difficult to read without punctuation, capitalization, or breaks in the text. It would help a lot if you edited a little.

Mustang5L5 · Oct 13, 2011

Autozone may not be able to do OBd1 codes.

If you plan on working on your stAng a lot, invest in this

http://www.amazon.com/dp/B000EW0KHW/?tag=stangnet-20

The computer is very good and diagnosing issues and this is the best method to read codes. Fast and easy to use.

No more guessing when you have a code number to use as a starting point

Noobz347 · Oct 13, 2011

What EEC are you running?
What is your base timing set at?

If it's an EEC from a GT, then put the 19lb injectors back in it and take it for a test drive. I see nothing in your setup that 19s can't support.

When you pull codes, it will likely be codes for O2 sensors out of range. If you are in fact running that lean, then your O2 sensors are probably toast by now.

1bad67sbf · Oct 13, 2011

Mustang5L5 said:
Autozone may not be able to do OBd1 codes.

If you plan on working on your stAng a lot, invest in this

Amazon.com: Equus 3145 Ford Digital Code Reader: Automotive

The computer is very good and diagnosing issues and this is the best method to read codes. Fast and easy to use.

No more guessing when you have a code number to use as a starting point

+1 i just got one for like $35 shipped from ebay new

Coboose003 · Oct 15, 2011

i havent been able to get to a parts store that has an obd 1 reader so i am just going to order the reader that 5l5 posted up. i will post the codes i get though

Coboose003 · Oct 19, 2011

ok so i got my reader and ran a koeo test got codes 31c and 41c, which according to my manual that i got with my reader means (31c) EVP (EGR valve position sensor or its circut) or PFE (Pressure feedback EGR sensor or its curcut) circut below minimum voltage. So does that mean that my EGR is bad or the fuse for it popped?(41c) HEGO (Heated Oxygen Sensor or its circut) (HO2S) [im assuming thats talking about O2 sensors] sensor signal out of range/ always lean No HO2S switching detected so thats where im at now after i get off of work im going to run a koer test. so that i can see if i get any other codes. but if anyone could tell me what they think so far i would greatly appreciate it.

Coboose003 · Oct 22, 2011

Ok so I cleaned out my egr valve and sensor then ran a koer test on it and got 21r 41r and 91r. No more 31 but new 91 code. So i bought some new o2 sensors hope it helps will post an update if anyone has any ideas. Oh ya and base timing is set at 10 degrees and i still havent gotten to look at my EEC

name this problem if you can

Coboose003

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Kdubslugga

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Coboose003

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joncash

just high enough to be functional

Mustang5L5

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Noobz347

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1bad67sbf

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Coboose003

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Coboose003

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name this problem if you can

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just high enough to be functional

That is…until I whipped out my Bissell

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