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I installed a new intake on my my 1994 Chevy 5.7 and now it

Customer Question
starts just fine but runs...
I installed a new intake on my my 1994 Chevy 5.7 and now it starts just fine but runs supper rich and falls on its face when I put it in gear drive it.
Submitted: 1 year ago.Category: Chevy
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Answered in 8 minutes by:
1/19/2016
Chevy Mechanic: Reggie Whiddon,
 replied 1 year ago
Reggie Whiddon
Category: Chevy
Satisfied Customers: 166
Experience: Lead tech at river regions auto
Verified

What do you have the timing set at? Do you have any codes, and the map sensor does it have a good supply of vacuum to it, do you have a scanner can we check data or codes

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Customer reply replied 1 year ago
Hi Reggie, sorry about not getting back sooner I've been really busy, I'll check the vacuum on the map sensor tomorrow , the timing is set at o degrees b. t. c. doesn't seem to make any difference if I advance it except the idle changes and the ocasional back fire,lots blue white smoke really lodes up at idle, can we check the codes with a scanner if the check engine light isn't on, if so I'll get a scanner. Thanks 4 your patients and hope to hear from you soon. Ed
Chevy Mechanic: Reggie Whiddon,
 replied 1 year ago

Yes we need to check the codes and also I'd like to know whst some of the data is reading, and when u set the timing did you put it in bypass mode by disconnecting the Tan wire black stripe?

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Customer reply replied 1 year ago
I disconnected the tan and black wire, then I get the service engine soon light, but no light when I reconnect it.The people at oreily"s said they can't read the codes unless the light is on,I'll go ahead and get a code reader from them , might take a day or so but I will let you know when I get it? Thanks again.
Chevy Mechanic: Reggie Whiddon,
 replied 1 year ago

Sir dont do that on yours you can put a paper clip between two terminals and the check engine light will flash codes for you it does it using a fast flash slow flash example flash flash flash would be code 21

Its the two that are beside each other

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Customer reply replied 1 year ago
K, I will give that a try, I'll let you know how that goes.
Chevy Mechanic: Reggie Whiddon,
 replied 1 year ago

Okay sir I'll be waiting

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Customer reply replied 1 year ago
Hi Reggie, I ran the code as you suggested , the only code it gave me was 21, which I understand is the tips out of range, I just had the Tbi rebuilt and the sensor looks new. The vacuum to the map sensor has plenty of vacuum. So I hope you can help me from here. Thanks. ed
Customer reply replied 1 year ago
The light flashes long, long, short, then very long pause and then repeats , I think that means 21
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