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88 camaro rs, service engine light.

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Old

Mar 2, 2016 | 12:12 AM

#1

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88 camaro rs, service engine light.

So I pulled the codes off of my 88 camaro and it says my MAP sensor is not functioning. But I don't think it has a MAP sensor. Any ideas on what could be wrong?

Old

Mar 8, 2016 | 11:33 AM

#2

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From: Littleton, CO USA

Car: 82 Berlinetta/57 Bel Air

Engine: L92/LQ4 (both w/4" stroke)

Transmission: 4L80E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

Re: 88 camaro rs, service engine light.

What engine?

To the best of my knowledge, all computerized 3rd gens had a MAP sensor.

Old

Mar 8, 2016 | 11:35 AM

#3

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From: Ohio

Car: 1987 Trans Am

Engine: 305 TPI

Re: 88 camaro rs, service engine light.

If it is factory 88 engine should be MAF I thought

Old

Mar 8, 2016 | 12:14 PM

#4

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iTrader: (14)

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From: Littleton, CO USA

Car: 82 Berlinetta/57 Bel Air

Engine: L92/LQ4 (both w/4" stroke)

Transmission: 4L80E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

Re: 88 camaro rs, service engine light.

RS is either MFI V6 or TBI 305. Both are SD.

Old

Mar 8, 2016 | 12:17 PM

#5

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From: Ohio

Car: 1987 Trans Am

Engine: 305 TPI

Re: 88 camaro rs, service engine light.

I see, my mistake

Old

Mar 8, 2016 | 05:15 PM

#6

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Re: 88 camaro rs, service engine light.

Quote:

Originally Posted by five7kid

What engine?

To the best of my knowledge, all computerized 3rd gens had a MAP sensor.

It has the 2.8 v6 in it and everyone I've asked about it having a MAP sensor has said they didn't have them with that engine.

Old

Mar 8, 2016 | 07:18 PM

#7

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From: Texas

Car: 91 Firebird/88 Firebird/91 Formula

Engine: V6 3.1/V8 5.0/V8 5.0

Transmission: 4L60/700R4/4L60

Axle/Gears: 3.23/2.73/2.73

Re: 88 camaro rs, service engine light.

What code did you pull from the ECM?

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Old

Mar 8, 2016 | 08:09 PM

#8

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From: Texas

Car: 91 Firebird/88 Firebird/91 Formula

Engine: V6 3.1/V8 5.0/V8 5.0

Transmission: 4L60/700R4/4L60

Axle/Gears: 3.23/2.73/2.73

Re: 88 camaro rs, service engine light.

Info out a '88 service manual. Draw your own conclusions. Further pages, let me know.

Attached Thumbnails

88 camaro rs, service engine light.-maf.jpg

88 camaro rs, service engine light.-maf1.jpg

Old

Mar 8, 2016 | 08:11 PM

#9

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Re: 88 camaro rs, service engine light.

Quote:

Originally Posted by antares57

What code did you pull from the ECM?

I pulled a 12, 24, 34 and 44. 12: diagnostics mode/ ecm functioning no reference pulses to ecm. 24: VSS no signal 34: MAP sensor air flow low 44: o2 sensor lean.

Old

Mar 8, 2016 | 08:12 PM

#10

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Re: 88 camaro rs, service engine light.

Quote:

Originally Posted by antares57

Info out a '88 service manual. Draw your own conclusions. Further pages, let me know.

Thank you for the diagrams they will help a lot.

Old

Mar 8, 2016 | 08:15 PM

#11

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Re: 88 camaro rs, service engine light.

Quote:

Originally Posted by 2012sergen11

If it is factory 88 engine should be MAF I thought

I replaced the MAF a while back and it fixed that problem but I think this is unrelated.

Old

Mar 8, 2016 | 08:16 PM

#12

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Re: 88 camaro rs, service engine light.

Quote:

Originally Posted by five7kid

What engine?

To the best of my knowledge, all computerized 3rd gens had a MAP sensor.

That's what I thought but when I went looking for the part for the v6 RS I couldn't find anything. I'm starting to think it may be a faulty ecm.

Old

Mar 8, 2016 | 08:22 PM

#13

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From: Texas

Car: 91 Firebird/88 Firebird/91 Formula

Engine: V6 3.1/V8 5.0/V8 5.0

Transmission: 4L60/700R4/4L60

Axle/Gears: 3.23/2.73/2.73

Re: 88 camaro rs, service engine light.

Try not to guess, diagnose.

Attached Thumbnails

88 camaro rs, service engine light.-mafd1.jpg

88 camaro rs, service engine light.-mafd2.jpg

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